CN110949594A

CN110949594A - Balance vehicle

Info

Publication number: CN110949594A
Application number: CN201911216335.6A
Authority: CN
Inventors: 张文成
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-04-03
Anticipated expiration: 2039-12-02
Also published as: CN110949594B

Abstract

The invention provides a balance car which comprises a car body, two wheels, two groups of pedal devices, two reverse transmission mechanisms, two groups of ratchet transmission mechanisms and two groups of reversing mechanisms, wherein the two wheels are respectively rotatably arranged on two sides of the car body, each group of ratchet transmission mechanisms respectively comprise a driving chain group, a first ratchet transmission assembly and a second ratchet transmission assembly, the first ratchet transmission assembly and the second ratchet transmission assembly are respectively arranged on two opposite sides of the driving chain group and are respectively connected and fixed with the pedal devices, the first ratchet transmission assembly or the second ratchet transmission assembly is in transmission connection with the driving chain group so as to drive the driving chain group to rotate, and the driving chain group is in transmission connection with the wheels. The balance car provided by the invention can realize continuous advancing, retreating or in-situ rotation of wheels only by alternately pedaling the two groups of pedal devices.

Description

Balance vehicle

Technical Field

The invention belongs to the technical field of mobility scooter, and particularly relates to a balance car.

Background

The scooter refers to a transportation tool or an auxiliary tool for the purpose of replacing walk, such as a scooter, a bicycle, a balance car, etc.

The balance car is a popular tool for riding instead of walk in recent years, and is particularly popular with young people, however, most of the balance cars in the current market are electric balance cars, the electric balance cars mainly control to advance or retreat through a servo control system, the structure is extremely complex, the cost is high, and the electric balance car is not beneficial to saving resources.

Disclosure of Invention

The invention aims to provide a balance car, which aims to solve the technical problems of complex structure and high cost of an electric balance car in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a balance car, include the automobile body, respectively rotate install in two wheels of automobile body both sides, balance car still includes:

the two groups of pedal devices are respectively and rotatably arranged on two sides of the vehicle body and are used for swinging downwards;

the reverse transmission mechanism is in transmission connection with the two groups of pedal devices and is used for realizing reverse swing between the two groups of pedal devices;

two groups of ratchet transmission mechanisms, wherein one group of ratchet transmission mechanism is arranged on one group of pedal devices, the other group of ratchet transmission mechanism is arranged on the other group of pedal devices, each group of ratchet transmission mechanism comprises a driving chain group, a first ratchet transmission assembly and a second ratchet transmission assembly, the first ratchet wheel transmission assembly and the second ratchet wheel transmission assembly are respectively arranged at two opposite sides of the driving chain group and are respectively connected and fixed with the pedal device, so that the first ratchet transmission component and the second ratchet transmission component move upwards or downwards synchronously along with the pedal device, the first ratchet transmission assembly or the second ratchet transmission assembly is in transmission connection with the driving chain set so as to drive the driving chain set to rotate, and the driving chain set is in transmission connection with the wheel so as to drive the wheel to rotate; and the number of the first and second groups,

and the two groups of reversing mechanisms are arranged on the vehicle body, one group of reversing mechanisms is used for switching the rotating direction of one of the wheels, and the other group of reversing mechanisms is used for switching the rotating direction of the other wheel.

The balance car provided by the invention has the beneficial effects that: compared with the prior art, the balance car provided by the invention has the advantages that the two groups of pedal devices are utilized to swing up and down to provide driving force, one group of ratchet transmission mechanisms are arranged on one group of pedal devices, the other group of ratchet transmission mechanisms are arranged on the other group of pedal devices, each group of ratchet transmission mechanisms comprises a driving chain group, a first ratchet transmission assembly and a second ratchet transmission assembly, the first ratchet transmission assembly and the second ratchet transmission assembly are respectively arranged at two opposite sides of the driving chain group and are respectively connected and fixed with the pedal devices, so that the first ratchet transmission assembly and the second ratchet transmission assembly synchronously move up or down along with the pedal devices, the driving chain groups are driven to rotate, and further the forward rotation and the reverse rotation of the wheels are driven, or one wheel rotates forward and the other wheel rotates reversely, and the continuous advancing of the wheels can be realized only by alternately pedaling the two groups of pedal devices, The electric balance car has the advantages that the electric balance car retreats or rotates in place, the rotating direction of the wheels can be changed at any time in the advancing process through the arrangement of the reversing mechanism, balance can be kept more favorably, the problems of complex structure and higher cost caused by the adoption of the electric balance car in the prior art are effectively solved, the structure is very simple, no dead point exists in transmission, the time and labor are saved during pedaling, and the speed and the comfort of the balance car are effectively improved; in addition, through the alternate pedaling of the two groups of pedal devices, the swing amplitude of the two groups of pedal devices can be properly reduced, so that the feet can be supported earlier when meeting emergencies, and a safe vertical driving condition is provided.

Drawings

Fig. 1 is a schematic perspective view of a balance car according to a first embodiment of the present invention;

fig. 2 is a schematic perspective view of a reverse drive mechanism according to a first embodiment of the present invention;

FIG. 3 is a schematic perspective view of a footrest apparatus according to a first embodiment of the present invention;

FIG. 4 is a schematic perspective view of a set of ratchet mechanisms according to a first embodiment of the present invention;

FIG. 5 is a schematic view of the alternate angular perspective structure of FIG. 4;

FIG. 6 is a schematic perspective view of a ratchet transmission mechanism and a reversing mechanism according to a first embodiment of the present invention;

fig. 7 is a schematic perspective view of a first ratchet transmission assembly and a second ratchet transmission assembly according to a first embodiment of the present invention;

fig. 8 is a schematic perspective view of a reversing mechanism according to a first embodiment of the present invention;

fig. 9 is a partial structural schematic view of a reversing mechanism according to a first embodiment of the present invention;

FIG. 10 is a schematic illustration of the exploded structure of FIG. 9;

fig. 11 is a schematic perspective view of a driving chain set according to a first embodiment of the present invention;

fig. 12 is a schematic perspective view of a brake apparatus according to a first embodiment of the present invention;

fig. 13 is an exploded view of a brake apparatus according to a first embodiment of the present invention;

fig. 14 is a schematic perspective view of a balance car according to a second embodiment of the present invention;

FIG. 15 is a schematic perspective view of a ratchet mechanism and a reversing mechanism according to a second embodiment of the present invention;

FIG. 16 is a perspective view of the ratchet mechanism according to the second embodiment of the present invention at the highest point;

fig. 17 is a schematic perspective view of a reversing mechanism according to a second embodiment of the present invention;

fig. 18 is a partial perspective view of a reversing mechanism according to a second embodiment of the present invention;

fig. 19 is an exploded view of a reversing mechanism according to a second embodiment of the present invention;

fig. 20 is a schematic perspective view illustrating a fourth touch set according to a second embodiment of the present invention;

fig. 21 is a schematic perspective view of a first ratchet transmission assembly and a second ratchet transmission assembly according to a second embodiment of the present invention;

fig. 22 is a schematic perspective view of the first and second ratchet transmission assemblies according to the second embodiment of the present invention when the first and second ratchet transmission assemblies are at the highest point;

fig. 23 is a perspective view of the third reverse pawl as viewed from the front;

fig. 24 is a perspective view of the third normal pawl viewed from the front;

FIG. 25 is a perspective view of the third positive pawl from the reverse side;

FIG. 26 is a perspective view of a fourth positive pawl;

fig. 27 is a perspective view of the fourth reverse pawl as viewed from the front;

fig. 28 is a perspective view of the fourth reverse pawl viewed from the reverse side;

fig. 29 is a schematic structural diagram of a first reset assembly according to a second embodiment of the present invention;

fig. 30 is a schematic diagram of the exploded structure of fig. 29.

Detailed Description

Example 1

Referring to fig. 1 to 13 together, a balance car according to a first embodiment of the present invention will now be described. The first embodiment of the invention provides a balance car, which comprises a car body 10 and two wheels 11 which are respectively and rotatably arranged on two sides of the car body 10. The balance vehicle further comprises two groups of pedal devices 20, a reverse transmission mechanism 30, two groups of ratchet transmission mechanisms 40 and two groups of reversing mechanisms 50. Two sets of pedals 20 are rotatably mounted on both sides of the vehicle body 10 and are swung downward to provide a driving force required for the rotation of the wheels 11. The reverse gear mechanism 30 is drivingly connected to the two sets of pedals 20 and is configured to effect a reverse swing between the two sets of pedals 20 such that when one set of pedals 20 is at the lowest point of travel, the other set of pedals 20 is at the highest point of travel, and when one set of pedals 20 is at the highest point of travel, the other set of pedals 20 is at the lowest point of travel.

One set of ratchet mechanisms 40 is mounted to one set of pedals 20, and the other set of ratchet mechanisms 40 is mounted to the other set of pedals 20. Each ratchet transmission mechanism 40 includes a driving chain group 41, a first ratchet transmission assembly 42 and a second ratchet transmission assembly 43, the first ratchet transmission assembly 42 and the second ratchet transmission assembly 43 are respectively disposed at two opposite sides of the driving chain group 41 and are respectively connected and fixed with the pedal device 20, so that the first ratchet transmission assembly 42 and the second ratchet transmission assembly 43 synchronously move upwards or downwards along with the pedal device 20. And the first ratchet transmission component 42 or the second ratchet transmission component 43 is in transmission connection with the driving chain set 41 to drive the driving chain set to rotate, i.e. the driving chain set 41 can be in transmission fit with the first ratchet transmission component 42 and driven to rotate by the first ratchet transmission component 42, or the driving chain set 41 can be in transmission fit with the second ratchet transmission component 43 and driven to rotate by the second ratchet transmission component 43. The driving chain set 41 is in transmission connection with the wheel 11 to drive the wheel 11 to rotate, so that the wheel 11 can rotate in a forward direction or a reverse direction according to actual needs. Through the two groups of ratchet transmission mechanisms 40 which are symmetrically arranged, the two wheels 11 can simultaneously realize forward rotation (the balance car is in a forward state), reverse rotation (the balance car is in a backward state) or forward rotation of one wheel 11 and reverse rotation of the other wheel 11 (the balance car is in a pivot rotation state).

Two sets of steering mechanisms 50 are mounted on the vehicle body 10, wherein one set of steering mechanisms 50 is used for switching the rotation direction of one of the wheels 11, and the other set of steering mechanisms 50 is used for switching the rotation direction of the other wheel 11, so that the rotation direction of the wheels 11 can be changed at any time during the traveling process, and balance can be kept more favorably.

Wherein, the forward rotation of the wheel 11 refers to the rotation direction driving the wheel 11 to advance, the advancing direction of the wheel 11 is as shown in fig. 1, the reverse rotation of the wheel 11 refers to the rotation direction opposite to the forward rotation, when both the wheels 11 rotate in the forward direction, the balance car advances; when the two wheels 11 rotate reversely, the balance car moves backwards; when one wheel 11 rotates in the forward direction and the other wheel 11 rotates in the reverse direction, the balance car rotates in place.

Compared with the prior art, the balance bike provided by the invention utilizes the up-and-down reciprocating swing of two groups of pedal devices 20 to provide driving force, one group of ratchet transmission mechanisms 40 is arranged on one group of pedal devices 20, the other group of ratchet transmission mechanisms 40 is arranged on the other group of pedal devices 20, each group of ratchet transmission mechanisms 40 comprises a driving chain group 41, a first ratchet transmission component 42 and a second ratchet transmission component 43, the first ratchet transmission component 42 and the second ratchet transmission component 43 are respectively arranged on two opposite sides of the driving chain group 41 and are respectively connected and fixed with the pedal devices 20, so that the first ratchet transmission component 42 and the second ratchet transmission component 43 synchronously move upwards or downwards along with the pedal devices 20, the driving chain group is driven to rotate, and then the forward rotation and the reverse rotation of the wheels 11 or the forward rotation of one wheel 11 is driven to rotate the other wheel 11 in reverse direction, the continuous advancing, retreating or in-situ rotation of the wheels 11 can be realized only by alternately pedaling the two groups of pedal devices 20, and the arrangement of the reversing mechanism 50 enables the rotating direction of the wheels 11 to be changed at any time in the advancing process, so that the balance is kept more favorably, the problems of complex structure and higher cost caused by the adoption of the electric balance car in the prior art are effectively solved, the structure is very simple, no dead point is generated in transmission, the time and the labor are saved during pedaling, and the speed and the comfort of the balance car are effectively improved; in addition, the swing amplitude of the two groups of pedal devices 20 can be properly reduced by the alternate pedaling of the two groups of pedal devices 20, so that the feet can be supported earlier when meeting emergencies, and a safe upright driving condition is provided.

Further, referring to fig. 1 to fig. 2, as an embodiment of the balance car according to the first embodiment of the present invention, the reverse transmission mechanism 30 includes a second transmission belt 31 and a diverting pulley 32 disposed on the car body 10 and used for supporting the second transmission belt 31, and two ends of the second transmission belt 31 respectively pass around the diverting pulleys 32 and are connected and fixed with the two sets of pedal devices 20. Through the arrangement of the reverse transmission mechanism 30, the reverse swing between the two groups of pedal devices 20 can be realized, when one pedal device 20 is stepped, the pedal device 20 drives the first ratchet transmission assembly 42 and the second ratchet transmission assembly 43 on the same side to move downwards, the first ratchet transmission assembly 42 or the second ratchet transmission assembly 43 drives the chain set 41 to rotate, and further drives the wheel 11 on the same side to rotate, the reverse transmission mechanism 30 drives the other pedal device 20 to move upwards, so that the first ratchet transmission assembly 42 and the second ratchet transmission assembly 43 arranged on the same side of the other pedal device 20 move upwards, and further drives the drive chain set 41 on the same side to rotate, and further drives the wheel 11 on the same side to rotate. Preferably, in this embodiment, the second belt 31 is a chain. It should be noted that the second belt 31 is not limited to this configuration, for example, in other preferred embodiments of the present invention, the second belt 31 can be a rope, which can also realize the reverse swing between the two sets of pedals 20.

Further, referring to fig. 2, as a specific implementation manner of the balance car provided by the first embodiment of the present invention, the reverse transmission mechanism 30 further includes an adjusting screw 33, and the adjusting screw 33 is used for adjusting the length of the second transmission belt 31, so as to lock the two sets of ratchet transmission mechanisms 40 at the synchronous and alternate relative positions, and prevent the two sets of ratchet transmission mechanisms 40 from generating motion interference in asynchronous and alternate manner.

Further, referring to fig. 4, fig. 5 and fig. 11 together, as an embodiment of the balance car according to the first embodiment of the present invention, the driving chain set 41 includes a first driving sprocket 411, a second driving sprocket 412 and a driving chain 413 for driving and connecting the first driving sprocket 411 and the second driving sprocket 412. The first ratchet driving assembly 42 is disposed on a first side 4131 of the driving chain 413, and the second ratchet driving assembly 43 is disposed on a second side 4132 of the driving chain 413 opposite to the first side 4131. The transmission chain 413 is in transmission connection with the first ratchet transmission assembly 42 or the second ratchet transmission assembly 43, when the transmission chain 413 is in transmission connection with the first ratchet transmission assembly 42, the second ratchet transmission assembly 43 is in an idle rotation state at the moment, that is, the transmission chain 413 and the second ratchet transmission assembly 43 have no transmission cooperation, and when the transmission chain 413 is in transmission connection with the second ratchet transmission assembly 43, the first ratchet transmission assembly 42 is in an idle rotation state at the moment, that is, the transmission chain 413 and the first ratchet transmission assembly 42 have no transmission cooperation. The wheel 11 can be drivingly connected to the first driving sprocket 411 or the second driving sprocket 412. When the transmission chain 413 is in transmission connection with the first ratchet transmission assembly 42, and when the first ratchet transmission assembly 42 moves downward, the transmission chain 413 is driven to rotate in the opposite direction, and at this time, the first transmission chain wheel 411 and the second transmission chain wheel 412 rotate in the opposite direction synchronously, so as to drive the wheel 11 to rotate in the opposite direction. When the transmission chain 413 is in transmission connection with the second ratchet transmission assembly 43, and when the second ratchet transmission assembly 43 moves downward, the transmission chain 413 is driven to rotate in the forward direction, and at this time, the first transmission chain wheel 411 and the second transmission chain wheel 412 rotate in the forward direction synchronously, so as to drive the wheel 11 to rotate in the forward direction. When the transmission chain 413 is in transmission connection with the first ratchet transmission assembly 42, and when the first ratchet transmission assembly 42 moves upward, the transmission chain 413 is driven to rotate in the forward direction, and at this time, the first transmission chain wheel 411 and the second transmission chain wheel 412 rotate in the forward direction synchronously, so as to drive the wheel 11 to rotate in the forward direction. When the transmission chain 413 is in transmission connection with the second ratchet transmission assembly 43, and when the second ratchet transmission assembly 43 moves upward, the transmission chain 413 is driven to rotate in the opposite direction, and at this time, the first transmission chain wheel 411 and the second transmission chain wheel 412 rotate in the opposite direction synchronously, so as to drive the wheel 11 to rotate in the opposite direction.

Further, referring to fig. 4 to 7 together, as an embodiment of the balance car provided by the first embodiment of the present invention, the first ratchet transmission assembly 42 includes a first ratchet 421 rotatably mounted on the pedal device 20, a first forward pawl 422 rotatably mounted on the pedal device 20, and a first reverse pawl 423 rotatably mounted on the pedal device 20. The periphery of the first ratchet 421 is provided with teeth for meshing with the transmission chain 413, and the transmission chain 413 is driven to transmit through the meshing of the first ratchet 421 and the transmission chain 413. The first ratchet 421 is provided with a first bidirectional ratchet 4211, the first forward pawl 422 abuts against or is separated from one end of the first bidirectional ratchet 4211, and the first reverse pawl 423 abuts against or is separated from the other end of the first bidirectional ratchet 4211. When the first forward pawl 422 and the first reverse pawl 423 abut against the first bidirectional ratchet 4211 respectively, that is, the first forward pawl 422 and the first reverse pawl 423 are both in a closed state, and at this time, the first forward pawl 422 and the first reverse pawl 423 are matched to lock the first ratchet 421, so that the first ratchet 421 cannot rotate. If the pedal device 20 moves downward, the first ratchet 421 moves downward synchronously and drives the transmission chain 413 to rotate reversely; when the pedal device 20 moves upward, the first ratchet 421 moves upward synchronously and drives the transmission chain 413 to rotate forward. When the first forward pawl 422 abuts against the first bidirectional ratchet 4211 and the first reverse pawl 423 is separated from the first bidirectional ratchet 4211, namely the first forward pawl 422 is in a closed state and the first reverse pawl 423 is in an open state, the first bidirectional ratchet 4211 can pass over the first reverse pawl 423 to allow the first ratchet 421 to rotate reversely and idly, and the first ratchet 421 cannot drive the transmission chain 413. When the first reverse pawl 423 abuts against the first double-direction ratchet 4211 and the first forward pawl 422 is separated from the first double-direction ratchet 4211, namely the first reverse pawl 423 is in a closed state and the first forward pawl 422 is in an open state, the first double-direction ratchet 4211 can pass over the first forward pawl 422, so that the first ratchet 421 rotates in a forward idle mode, and the first ratchet 421 cannot drive the transmission chain 413.

The second ratchet drive assembly 43 includes a second ratchet 431 rotatably mounted to the pedal assembly 20, a second forward pawl 432 rotatably mounted to the pedal assembly 20, and a second reverse pawl 433 rotatably mounted to the pedal assembly 20. The outer periphery of the second ratchet wheel 431 is provided with teeth for meshing with the transmission chain 413, and the transmission chain 413 is driven to transmit through the meshing of the second ratchet wheel 431 and the transmission chain 413. The second ratchet 431 is provided with a second bidirectional ratchet 4311, the second forward pawl 432 is in contact with or separated from one end of the second bidirectional ratchet 4311, and the second reverse pawl 433 is in contact with or separated from the other end of the second bidirectional ratchet 4311. When the second forward pawl 432 and the second reverse pawl 433 abut against the second bidirectional ratchet 4311 respectively, that is, the second forward pawl 432 and the second reverse pawl 433 are both in a closed state, at this time, the second forward pawl 432 and the second reverse pawl 433 cooperate to lock the second ratchet 431, so that the second ratchet 431 does not rotate. If the pedal device 20 moves downward, the second ratchet 431 moves downward synchronously and drives the transmission chain 413 to rotate forward; when the pedal device 20 moves upward, the second ratchet 431 moves upward synchronously and drives the transmission chain 413 to rotate reversely. When the second forward pawl 432 abuts against the second bidirectional ratchet 4311 and the second reverse pawl 433 is separated from the second bidirectional ratchet 4311, that is, the second forward pawl 432 is in a closed state and the second reverse pawl 433 is in an open state, the second forward pawl 4311 can pass over the second reverse pawl 433, so that the second ratchet 431 is rotated in a forward direction in an idle state, and the second ratchet 431 cannot drive the transmission chain 413. When the second reverse pawl 433 abuts against the second bidirectional ratchet 4311 and the second forward pawl 432 is separated from the second bidirectional ratchet 4311, i.e. the second reverse pawl 433 is in the closed state and the second forward pawl 432 is in the open state, the second reverse ratchet 4311 can pass over the second forward pawl 432, so that the second ratchet 431 is reversely rotated in a freewheeling state, and the second ratchet 431 cannot drive the transmission chain 413. Specifically, in this embodiment, the first forward pawl 422 and the second reverse pawl 433 are symmetrically disposed on two sides of the transmission chain 413, the first reverse pawl 423 and the second forward pawl 432 are symmetrically disposed on two sides of the transmission chain 413, the first reverse pawl 423 is located above the first forward pawl 422, and the second forward pawl 432 is located above the second reverse pawl 433.

Further, referring to fig. 4 to fig. 10, as an embodiment of the balance car according to the first embodiment of the present invention, the reversing mechanism 50 includes a first mounting seat 51, a first rotating shaft 52, a first touch set 53, a second touch set 54, and a first friction member 55. The first mounting seat 51 is mounted on the vehicle body 10, the first rotating shaft 52 is rotatably mounted on the first mounting seat 51, the first trigger group 53 is fixed on the first rotating shaft 52 and swings with the rotation of the first rotating shaft 52, and is used for contacting with the first reverse pawl 423 when the pedal device 20 moves to the highest point to push the first reverse pawl 423 to turn over, so as to open the first reverse pawl 423; or contacts the second forward pawl 432 to urge the second forward pawl 432 to flip, thereby effecting opening of the second forward pawl 432. The second trigger group 54 is rotatably mounted on the vehicle body 10 and connected to the first trigger group 53, and the second trigger group 54 is configured to contact the first positive pawl 422 when the pedal device 20 moves to the lowest point to push the first positive pawl 422 to turn over, so as to open the first positive pawl 422; or contacts the second reverse pawl 433 to push the second reverse pawl 433 to turn over, thereby achieving the opening of the second reverse pawl 433. Specifically, the second trigger group 54 is connected to the first trigger group 53 in a reverse swing manner, so that the second trigger group 54 and the first trigger group 53 can swing in a reverse direction, that is, when the first trigger group 53 swings in a forward direction, the second trigger group 54 swings in a reverse direction, at this time, the first trigger group 53 is opposite to the first reverse pawl 423, the first trigger group 53 and the second forward pawl 432 are staggered with each other, the second trigger group 54 is opposite to the second reverse pawl 433, and the second trigger group 54 and the first forward pawl 422 are staggered with each other; when the first trigger set 53 swings in the reverse direction, the second trigger set 54 swings in the forward direction, and at this time, the first trigger set 53 faces the second forward pawl 432, the first trigger set 53 and the first reverse pawl 423 are staggered, the second trigger set 54 faces the first forward pawl 422, and the second trigger set 54 and the second reverse pawl 433 are staggered.

The first friction member 55 is fixed to the first rotation shaft 52 and is in frictional contact with the wheel 11. Preferably, the first friction member 55 may be elastically fixed to the first rotating shaft 52 by a torsion spring 551 or the like, so that the first friction member 55 is in elastic frictional contact with the wheel 11. When the wheel 11 rotates in the forward direction, at this time, the first friction member 55, under the action of the friction force of the wheel 11, drives the first touch set 53 to swing in the forward direction, at this time, the first touch set 53 faces the first reverse pawl 423, the first touch set 53 is staggered from the second forward pawl 432, and since the second touch set 54 is connected to the first touch set 53 in the reverse swing direction, the second touch set 54 swings in the reverse direction, at this time, the second touch set 54 faces the second reverse pawl 433, and the second touch set 54 is staggered from the first forward pawl 422. When the pedal device 20 moves to the highest point, the first trigger set 53 contacts the first reverse pawl 423, so that the first reverse pawl 423 is automatically opened, and the first reverse pawl 423 is prevented from interfering with the forward rotation of the wheel 11; when the foot rest 20 moves to the lowest point, the second touching group 54 contacts the second reverse pawl 433, so that the second reverse pawl 433 is automatically opened to prevent the second reverse pawl 433 from interfering with the forward rotation of the wheel 11. When the wheel 11 rotates reversely, at this time, the first friction member 55, under the action of the friction force of the wheel 11, drives the first touch set 53 to swing reversely, at this time, the first touch set 53 is opposite to the second forward pawl 432, the first touch set 53 and the first reverse pawl 423 are staggered with each other, and since the second touch set 54 is connected with the first touch set 53 in a reverse swing manner, the second touch set 54 swings in a forward direction, at this time, the second touch set 54 is opposite to the first forward pawl 422, and the second touch set 54 is staggered with the second reverse pawl 433. When the pedal device 20 moves to the highest point, the first touching group 53 contacts the second forward pawl 432, so that the second forward pawl 432 is automatically opened, and the second forward pawl 432 is prevented from interfering with the reverse rotation of the wheel 11. When the foot pedal 20 moves to the lowest point, the second touching group 54 contacts the first positive pawl 422, so that the first positive pawl 422 is automatically opened, and the first positive pawl 422 is prevented from interfering with the positive rotation of the wheel 11.

Further, referring to fig. 4 to 10 together, as an embodiment of the balance car according to the first embodiment of the present invention, the first touch set 53 includes a first reverse pawl touch arm 531 and a second forward pawl touch arm 532 connected to the first reverse pawl touch arm 531. In the present embodiment, the first reverse pawl contact arm 531 and the second forward pawl contact arm 532 are integrally formed. The first reverse pawl contact arm 531 and the second forward pawl contact arm 532 form a V-shaped structure. The first reverse pawl contact arm 531 serves to contact the first reverse pawl 423 and push the first reverse pawl 423 to be reversed, thereby separating the first reverse pawl 423 from the first double ratchet teeth 4211. The second forward pawl touch arm 532 serves to contact the second forward pawl 432 and push the second forward pawl 432 to turn, thereby disengaging the second forward pawl 432 from the second double-directional ratchet 4311. The second touch group 54 includes a first forward pawl touch arm 541 and a second reverse pawl touch arm 542 connected to the first forward pawl touch arm 541. In this embodiment, the first forward pawl contact arm 541 and the second reverse pawl contact arm 542 are integrally connected. The first forward pawl contact arm 541 and the second reverse pawl contact arm 542 form a V-shaped structure. The first forward pawl touch arm 541 serves to contact the first forward pawl 422 and push the first forward pawl 422 to be reversed, thereby separating the first forward pawl 422 from the first double-directional ratchet 4211. The second reverse pawl touch arm 542 is configured to contact the second reverse pawl 433 and push the second reverse pawl 433 to turn over, thereby separating the second reverse pawl 433 from the second bidirectional ratchet 4311. Specifically, in the present embodiment, the first trigger group 53 and the second trigger group 54 are connected by a connection rope 533 or a connection rod, one end of the connection rope 533 is fixed to the second forward pawl trigger arm 532, and the other end of the connection rope 533 is fixed to the second reverse pawl trigger arm 542.

When the first trigger group 53 swings in the forward direction, the second trigger group 54 swings in the reverse direction, at this time, the first reverse pawl trigger arm 531 faces the first reverse pawl 423, the second forward pawl trigger arm 532 and the second forward pawl 432 are staggered with each other, the second reverse pawl trigger arm 542 faces the second reverse pawl 433, and the first forward pawl trigger arm 541 and the first forward pawl 422 are staggered with each other; if the pedal device 20 moves to the highest point, at this time, the first reverse pawl touch arm 531 touches the first reverse pawl 423 to turn over, so that the first reverse pawl 423 is separated from the first bidirectional ratchet 4211; if the foot pedal 20 moves to the lowest point, the second reverse pawl touch arm 542 touches the second reverse pawl 433 to flip such that the second reverse pawl 433 is separated from the second bidirectional ratchet 4311. When the first trigger group 53 swings in the reverse direction, the second trigger group 54 swings in the forward direction, at this time, the second forward pawl trigger arm 532 is opposite to the second forward pawl 432, the first reverse pawl trigger arm 531 and the first reverse pawl 423 are staggered with each other, the first forward pawl trigger arm 541 is opposite to the first forward pawl 422, and the second reverse pawl trigger arm 542 is staggered with the second reverse pawl 433; if the pedal device 20 moves to the highest point, the second forward pawl touch arm 532 touches the second forward pawl 432 to turn over, so that the second forward pawl 432 is separated from the second bidirectional ratchet 4311; if the foot pedal 20 moves to the lowest point, the first forward pawl touch arm 541 touches the first forward pawl 422 to flip such that the first forward pawl 422 is separated from the first double-directional ratchet 4211.

Further, referring to fig. 6 to 7 together, as an embodiment of the balance car provided by the first embodiment of the present invention, the pedal device 20 is further provided with touch bars 21 respectively corresponding to the first forward pawl 422, the first reverse pawl 423, the second forward pawl 432 and the second reverse pawl 433, and the touch bars 21 are respectively movably mounted on the pedal device 20 up and down. When the first forward direction pawl touch arm 541 is aligned with the corresponding touch rod 21, the touch rod 21 can be pushed to move along a direction close to the first forward direction pawl 422, so as to push the first forward direction pawl 422 to turn over. When the first reverse pawl touch arm 531 is aligned with the corresponding touch rod 21, the touch rod 21 is pushed to move in a direction close to the first reverse pawl 423, so as to push the first reverse pawl 423 to turn over. When the second forward direction pawl touch arm 532 is aligned with the corresponding touch bar 21, the touch bar 21 can be pushed to move along a direction close to the second forward direction pawl 432, and then the second forward direction pawl 432 is pushed to turn. When the second reverse pawl touch arm 542 is aligned with the corresponding touch bar 21, the touch bar 21 can be pushed to move along a direction close to the second reverse pawl 433, so as to push the second reverse pawl 433 to turn over.

Further, referring to fig. 6 to 10 together, as a specific implementation manner of the pedal balance car according to the first embodiment of the present invention, two first limit screws 511 are respectively mounted on the first mounting seat 51, and the two first limit screws 511 are respectively located at two opposite sides of the first touch set 53 for limiting a swing angle of the first touch set 53.

Further, referring to fig. 4 to fig. 6, as a specific implementation of the balance car according to the first embodiment of the present invention, the reversing mechanism 50 further includes a reset mechanism 60, and the reset mechanism 60 includes a first elastic member 61 and a second elastic member 62. One end of the first elastic member 61 abuts against the first forward pawl 422, and the other end of the first elastic member 61 abuts against the first reverse pawl 423 for providing an elastic force to push the first forward pawl 422 to be reversed and engaged with the first double-directional ratchet 4211 when the first forward pawl touch arm 541 is separated from the first forward pawl 422, and for providing an elastic force to push the first reverse pawl 423 to be reversed and engaged with the first double-directional ratchet 4211 when the first reverse pawl touch arm 531 is separated from the first reverse pawl 423. The first forward pawl 422 and the first reverse pawl 423 can restore to the initial positions after the external force is removed by the arrangement of the first elastic member 61, and the first forward pawl 422 and the first reverse pawl 423 achieve the closed state. One end of the second elastic member 62 abuts against the second forward pawl 432, and the other end of the second elastic member 62 abuts against the second reverse pawl 433 for providing an elastic force to push the second forward pawl 432 to turn over and engage with the second bidirectional ratchet 4311 when the second forward pawl touch arm 532 is separated from the second forward pawl 432, and for providing an elastic force to push the second reverse pawl 433 to turn over and engage with the second bidirectional ratchet 4311 when the second reverse pawl touch arm 542 is separated from the second reverse pawl 433. The second elastic member 62 is arranged to enable the second forward pawl 432 and the second backward pawl 433 to return to the initial positions after the external force is removed, and at this time, the second forward pawl 432 and the second backward pawl 433 achieve the closed state. Preferably, the first elastic member 61 and the second elastic member 62 may be torsion springs or springs.

Further, referring to fig. 8 to 10 together, as an embodiment of the balance car according to the first embodiment of the present invention, the reversing mechanism 50 further includes a manual shifting mechanism 70 for manually shifting the direction of the wheels 11. The manual shift mechanism 70 includes a wire shifting device 71 and an elastic limiting member 72 for positioning the wire shifting device 71, in this embodiment, the wire shifting device 71 is sleeved on the first mounting seat 51, the first touch set 53 is provided with a first limiting groove 534, and one end of the wire shifting device 71 is inserted into the first limiting groove 534, so as to drive the first touch set 53 to swing when the direction is manually switched, and limit the swing range of the first touch set 53. The shifter 71 has an un-manual shift position, a forward shift position, and a reverse shift position, and specifically, the forward shift position and the reverse shift position are respectively located on the left and right sides of the un-manual shift position. When the wire shifter 71 is in a non-manual gear position (i.e. when one end of the wire shifter 71 is located at the middle position of the first limiting groove 534), the manual gear shifting mechanism 70 does not interfere with the first touch set 53, so that the first friction member 55 can realize an automatic reversing operation according to the rotation direction of the wheel 11. When the wire shifter 71 is in the forward gear position, the manual shift mechanism 70 can overcome the friction force of the wheel 11 received by the first friction member 55 and drive the first touch set 53 to swing in the forward direction, so as to perform forced reversing, and when the wire shifter 71 is in the reverse gear position, the manual shift mechanism 70 can overcome the friction force of the wheel 11 received by the first friction member 55 and drive the first touch set 53 to swing in the reverse direction, so as to perform forced reversing. For example, when the wheel 11 needs to be changed from forward to backward, by shifting the shifter 71 to a reverse gear, the shifter 71 drives the first touch set 53 to swing in reverse, the second touch set 54 swings in forward, at this time, the second forward pawl touch arm 532 faces the second forward pawl 432, the first reverse pawl touch arm 531 and the first reverse pawl 423 are staggered, the first forward pawl touch arm 541 faces the first forward pawl 422, and the second reverse pawl touch arm 542 faces the second reverse pawl 433 are staggered, so that the second forward pawl 432 and the first forward pawl 422 can be forcibly opened, and interference from the rotation direction of the wheel 11 can be avoided. Or when the wheel 11 needs to move forward from the backward position, the wire shifter 71 is shifted to a forward gear position, the limiting member drives the first touch set 53 to swing in the forward direction, the second touch set 54 swings in the reverse direction, at this time, the first reverse pawl touch arm 531 is opposite to the first reverse pawl 423, the second forward pawl touch arm 532 is staggered with the second forward pawl 432, the second reverse pawl touch arm 542 is opposite to the second reverse pawl 433, and the first forward pawl touch arm 541 is staggered with the first forward pawl 422, so that the first reverse pawl 423 and the second reverse pawl 433 can be forcibly opened, and interference of the rotation direction of the wheel 11 is avoided. By providing the manual shift mechanism 70, the forward rotation or the reverse rotation of the wheel 11 is manually switched.

Further, referring to fig. 11 to 12 together, as an embodiment of the balance car according to the first embodiment of the present invention, the ratchet transmission mechanism 40 further includes a transmission device 44, the transmission device 44 includes a first transmission wheel 441, a second transmission wheel 442, and a first transmission belt 443 drivingly connecting the first transmission wheel 441 and the second transmission wheel 442, the first transmission wheel 441 is fixedly connected to the first transmission sprocket 411 or the second transmission sprocket 412, and the second transmission wheel 442 is rotatably mounted on the axle 111 of the wheel 11. The transmission of the wheels 11 is thus achieved by the provision of the transmission 44.

Further, referring to fig. 12 to 13 together, as a specific implementation manner of the balance car according to the first embodiment of the present invention, the balance car further includes a brake device 90, and the brake device 90 includes a wheel friction block 91, a driving friction block 92, a pushing friction block 93, a brake friction block 94, a brake cable 95, a brake piece 96, a limit stop 97, and a return elastic piece 98. The wheel friction block 91 is fixedly connected with the wheel 11. The driving friction block 92 is axially movably mounted on the second transmission wheel 442, and the second transmission wheel 442 and the driving friction block 92 are respectively disposed on two sides of the wheel friction block 91. The push friction block 93 is mounted on the axle 111 of the wheel 11 and can move axially relative to the wheel 11, and the push friction block 93 includes an inner friction member 931 interposed between the drive friction block 92 and the wheel 11, and an outer friction member 932 disposed at an end of the wheel 11 away from the inner friction member 931 and connected and fixed to the inner friction member 931. The brake friction block 94 is axially movably disposed between the wheel 11 and the outer friction element 932, and is configured to abut against the outer friction element 932 in a braking state and drive the outer friction element 932 to axially move in a direction away from the inner friction element 931, so that the drive friction block 92 is separated from the wheel friction block 91 and the inner friction element 931 abuts against the wheel 11, thereby cutting off a power source of rotation of the wheel 11, and since the brake friction block 94 abuts against the outer friction element 932, the outer friction element 932 is fixedly connected with the inner friction element 931, and the inner friction element 931 abuts against the second wheel 11 at the same time, thereby playing a role of braking. Brake line 95 is connected with brake pad 94, and brake piece 96 is connected with brake line 95 and is used for controlling brake pad 94's axial displacement, and when stepping on brake piece 96, drive brake pad 94 through brake line 95 and remove along the direction of keeping away from wheel pad 91, and then realize brake's function, and the operation is very simple and convenient. The limit stop 97 is sleeved outside the axle 111 of the wheel 11. The two ends of the elastic resetting element 98 are respectively abutted against the limit stop 97 and the outer friction element 932, so as to provide elastic thrust to enable the driving friction block 92 and the wheel friction block 91 to keep elastic abutment in a non-braking state, and further to drive the rotation of the wheel 11, and at the moment, the inner friction element 931 is separated from the wheel 11, and the rotation of the wheel 11 cannot be influenced.

Specifically, in this embodiment, the brake member 96 is a brake pedal. In other preferred embodiments of the invention, the brake member 96 can also be a brake handle bar. Through the arrangement of the brake device 90, the brake operation is realized, and meanwhile, the brake device 90 can also realize the reversing operation. For example, when the two wheels 11 rotate in the forward direction simultaneously, before the pedal device 20 is located at the highest point and the lowest point, the brake 96 on one side can be stepped to separate the driving friction block 92 on the side from the wheel friction block 91 on the side, and the body can be used to twist the vehicle body 10 to rotate the wheel 11 on the side in the direction opposite to the original rotation direction due to inertia (i.e. the wheel 11 starts to rotate in the reverse direction), so as to drive the first friction member 55 to swing in the reverse direction, so that the first touch set 53 swings in the reverse direction, the second touch set 54 swings in the forward direction, the first forward pawl 422 and the second forward pawl 432 are opened, and when the brake 96 is released, the wheel 11 on the side becomes rotated in the reverse direction, so as to change the rotation direction of the wheel 11. When the brake pieces 96 on both sides are simultaneously stepped on, the rotation directions of the wheels 11 on both sides are changed, thereby realizing the reversing operation. If only one of the brake members 96 is stepped on, the other wheel 11 still keeps rotating in the original forward direction, so that the rotation directions of the two wheels 11 are opposite, thereby realizing the pivot rotation.

Further, referring to fig. 1 to 3 together, as an embodiment of the balance car provided by the first embodiment of the present invention, the pedal device 20 includes a sliding block 23 and a pedal 24 mounted on the sliding block 23, the car body 10 is provided with a rail seat 12, and the sliding block 23 is slidably mounted on the rail seat 12, so that the running is more stable.

Further, referring to fig. 1 to 3 together, as an embodiment of the balance car provided by the first embodiment of the present invention, each pedal device 20 includes two pedals 24, and the two pedals 24 are arranged in parallel in front and at the back, so as to be beneficial for the user to keep balance.

The principle of the continuous forward operation of the single wheel 11 is as follows:

when the wheel 11 rotates in the forward direction, the first trigger group 53 swings in the forward direction, the second trigger group 54 swings in the reverse direction, the first reverse pawl trigger arm 531 faces the first reverse pawl 423, the second forward pawl trigger arm 532 and the second forward pawl 432 are staggered, the second reverse pawl trigger arm 542 faces the second reverse pawl 433, and the first forward pawl trigger arm 541 and the first forward pawl 422 are staggered. Since the first reverse pawl contact arm 531 opens the first reverse pawl 423 at the highest point, so that the first reverse pawl 423 is separated from the first two-way ratchet 4211, and the second forward pawl 432 and the second reverse pawl 433 are kept in a closed state, when the pedal device 20 moves downwards from the highest point, the first ratchet 421 reversely rotates, the first two-way ratchet 4211 passes over the first reverse pawl 423 and synchronously rotates reversely along with the first ratchet 421, and the second forward pawl 432 and the second reverse pawl 433 simultaneously cooperate with the second two-way ratchet 4311 to lock the second ratchet 431, so that the second ratchet 431 drives the transmission chain 413 to rotate forwards, and the forward rotation of the wheel 11 is realized.

When the foot pedal 20 moves to the lowest point, at this time, the second reverse pawl touch arm 542 opens the second reverse pawl 433, so that the second reverse pawl 433 is separated from the second bidirectional ratchet 4311, and at this time, the first double ratchet 4211 just rotates and returns to the initial position beyond the first forward pawl touch arm 541, at which time the first forward pawl 422 and the first reverse pawl 423 maintain the closed state, when the pedal device 20 moves upward from the lowest point, the second ratchet 431 is rotated in reverse, the second bidirectional ratchet 4311 passes over the second reverse pawl 433 and rotates in reverse in synchronization with the second ratchet 431, and the first forward pawl 422 and the first reverse pawl 423 are simultaneously engaged with the first ratchet 4211 to lock the first ratchet 421, so that the first ratchet 421 drives the transmission chain 413 to rotate in the forward direction, and the forward rotation of the wheel 11 is realized, thereby completing the forward alternating process of the single wheel 11 and enabling the wheel 11 to continuously advance. Similarly, the process of reversing and alternating the single wheel 11 can be realized, and will not be described herein.

The principle of commutation of a single wheel 11 is as follows:

when the second ratchet 431 is in a working state (i.e., the second ratchet 431 drives the transmission chain 413 to rotate), the first ratchet 421 is in a non-rotation state (i.e., the first ratchet 421 does not drive the chain to rotate), if the pedal device 20 on the same side moves downwards, the second ratchet 431 synchronously moves downwards, the second ratchet 431 drives the transmission chain 413 to rotate in the forward direction, so that the wheel 11 rotates in the forward direction, and if the pedal device 20 on the same side moves upwards, the second ratchet 431 synchronously moves upwards, the second ratchet 431 drives the transmission chain 413 to rotate in the reverse direction, so that the wheel 11 rotates in the reverse direction.

When the first ratchet wheel 421 is in a working state (i.e., the first ratchet wheel 421 drives the transmission chain 413 to rotate), the second ratchet wheel 431 is in a non-rotation state (i.e., the second ratchet wheel 431 does not drive the chain to rotate), if the pedal device 20 on the same side moves downward, the first ratchet wheel 421 synchronously moves downward, the first ratchet wheel 421 drives the transmission chain 413 to rotate in the reverse direction, so as to realize the reverse rotation of the wheel 11, and if the pedal device 20 on the same side moves upward, the first ratchet wheel 421 synchronously moves upward, the first ratchet wheel 421 drives the transmission chain 413 to rotate in the forward direction, so as to realize the forward rotation of the wheel 11.

The working principle of the forward movement, the backward movement and the in-situ rotation of the balance car of the first embodiment of the invention is as follows:

for convenience of describing the present invention and simplifying the description, one of the foot pedal sets 20 will be designated as the left foot pedal 20 and the other foot pedal set 20 will be designated as the right foot pedal 20. The "wheel 11 on the same side as the left pedal device 20" is named as a "left wheel 11", and the "wheel 11 on the same side as the right pedal device 20" is named as a "right wheel 11". The left ratchet gear 40 is named as the ratchet gear 40 on the same side of the left pedal device 20, the right ratchet gear 40 is named as the ratchet gear 40 on the same side of the right pedal device 20, and the names of the other components are analogized in turn, however, the above simplified description does not indicate or imply a specific orientation, and thus, should not be construed as limiting the present invention.

Firstly, when the left second ratchet wheel 431 and the right first ratchet wheel 421 are in a working state, the left first ratchet wheel 421 and the right second ratchet wheel 431 are in an idle rotation state, and at this time, the balance car can realize forward or backward operation, specifically including the following two conditions:

(1) when the left pedal device 20 is stepped downwards, the left pedal device 20 drives the left second ratchet wheel 431 to move downwards, and at the moment, the left second ratchet wheel 431 drives the left driving chain group 41 to rotate positively, so that the left wheel 11 rotates positively; the right pedal device 20 moves upward under the driving of the reverse transmission mechanism 30, and at this time, the right first ratchet 421 drives the right driving chain set 41 to rotate in the forward direction, so that the right wheel 11 rotates in the forward direction, that is, the left wheel 11 and the right wheel 11 rotate in the forward direction at the same time, and at this time, the balance car is in a forward state.

(2) When the right pedal device 20 is stepped downwards, the right pedal device 20 drives the right first ratchet wheel 421 to move downwards, and at the moment, the right first ratchet wheel 421 drives the right drive chain group 41 to rotate reversely, so that the right wheel 11 rotates reversely; the left pedal device 20 moves upward under the driving of the reverse transmission mechanism 30, and at this time, the left second ratchet wheel 431 drives the left driving chain group 41 to rotate reversely, so that the left wheel 11 rotates reversely, that is, the left wheel 11 and the right wheel 11 rotate reversely at the same time, and at this time, the balance car is in a retreating state.

Secondly, when the left first ratchet wheel 421 and the right second ratchet wheel 431 are in a working state, the left second ratchet wheel 431 and the right first ratchet wheel 421 are in an idle rotation state, and at this time, the balance car can realize forward or backward operation, specifically including the following two conditions:

(1) when the right pedal device 20 is stepped downwards, the right pedal device 20 drives the right second ratchet wheel 431 to move downwards, and at the moment, the right second ratchet wheel 431 drives the right drive chain group 41 to rotate in the positive direction, so that the right wheel 11 rotates in the positive direction; the left pedal device 20 moves upward under the driving of the reverse transmission mechanism 30, and the left first ratchet 421 drives the left driving chain group 41 to rotate forward, so that the left wheel 11 rotates forward, that is, the left wheel 11 and the right wheel 11 rotate forward simultaneously, and the balance car is in a forward state at this time.

(2) When the left pedal device 20 is stepped downwards, the left pedal device 20 drives the left first ratchet wheel 421 to move downwards, and at this time, the left first ratchet wheel 421 drives the left drive chain group 41 to rotate reversely, so that the left wheel 11 rotates reversely; the right pedal device 20 moves upward under the driving of the reverse transmission mechanism 30, and at this time, the right second ratchet 431 drives the right driving chain group 41 to rotate reversely, so that the right wheel 11 rotates reversely, that is, the left wheel 11 and the right wheel 11 rotate reversely at the same time, and at this time, the balance car is in a retreating state.

Thirdly, when the left first ratchet 421 and the right first ratchet 421 are in the working state, the left second ratchet 431 and the right second ratchet 431 are in the idle rotation state, and at this time, the balance car can realize the pivot rotation operation, which specifically includes the following two conditions:

(1) when the left pedal device 20 is stepped downwards, the left pedal device 20 drives the left first ratchet wheel 421 to move downwards, and at the moment, the left first ratchet wheel 421 drives the left driving chain group 41 to rotate reversely, so that the left wheel 11 rotates reversely; the right pedal device 20 moves upward under the driving of the reverse transmission mechanism 30, and at this time, the right first ratchet 421 drives the right driving chain set 41 to rotate in the forward direction, so that the right wheel 11 rotates in the forward direction, that is, the reverse rotation of the left wheel 11 and the forward rotation of the right wheel 11 are realized, and at this time, the balance car is in a state of in-situ rotation.

(2) When the right pedal device 20 is stepped downwards, the right pedal device 20 drives the right first ratchet wheel 421 to move downwards, and at the moment, the right first ratchet wheel 421 drives the right drive chain group 41 to rotate reversely, so that the right wheel 11 rotates reversely; the left pedal device 20 moves upward under the driving of the reverse transmission mechanism 30, and at this time, the left first ratchet 421 drives the left driving chain set 41 to rotate forward, so that the left wheel 11 rotates forward, that is, the forward rotation of the left wheel 11 and the reverse rotation of the right wheel 11 are realized, and at this time, the balance car is in a state of in-situ rotation.

Fourthly, when the left second ratchet wheel 431 and the right second ratchet wheel 431 are in the working state, the left first ratchet wheel 421 and the right first ratchet wheel 421 are in the idle rotation state, and the balance car can realize the pivot rotation operation at the moment, and the method specifically comprises the following two conditions:

(1) when the left pedal device 20 is stepped downwards, the left pedal device 20 drives the left second ratchet wheel 431 to move downwards, and at the moment, the left second ratchet wheel 431 drives the left driving chain group 41 to rotate positively, so that the left wheel 11 rotates positively; the right pedal device 20 moves upward under the driving of the reverse transmission mechanism 30, and at this time, the right second ratchet 431 drives the right driving chain set 41 to rotate in the reverse direction, so that the right wheel 11 rotates in the reverse direction, that is, the forward rotation of the left wheel 11 and the reverse rotation of the right wheel 11 are realized, and at this time, the balance car is in a state of rotating in situ.

(2) When the right pedal device 20 is stepped downwards, the right pedal device 20 drives the right second ratchet wheel 431 to move downwards, and at the moment, the right second ratchet wheel 431 drives the right drive chain group 41 to rotate in the positive direction, so that the right wheel 11 rotates in the positive direction; the left pedal device 20 moves upward under the driving of the reverse transmission mechanism 30, and at this time, the left second ratchet wheel 431 drives the left driving chain set 41 to rotate in the reverse direction, so that the left wheel 11 rotates in the reverse direction, that is, the reverse rotation of the left wheel 11 and the forward rotation of the right wheel 11 are realized, and at this time, the balance car is in a state of in-situ rotation.

Example 2

Referring to fig. 14 to 30 together, a balance car according to a second embodiment of the present invention will now be described. The structure of the balance car according to the second embodiment of the present invention is basically the same as that of the balance car according to the first embodiment of the present invention, except that:

in this embodiment, the first ratchet drive assembly 42 includes a third forward pawl 424 and a third reverse pawl 425. The third forward pawl 424 is rotatably mounted to the pedal device 20 and is configured to abut against the drive chain 413, thereby driving the drive chain 413 such that the wheel 11 rotates. The third forward pawl 424 has an open or closed state when the third forward pawl 424 is in the closed state, when the third forward pawl 424 is in abutment with the drive chain 413. The third reverse pawl 425 is rotatably mounted on the foot pedal 20 and is adapted to abut against the drive chain 413 to drive the drive chain 413 such that the wheel 11 is rotated. The third reversing pawl 425 has an open or closed state when the third reversing pawl 425 is in the closed state, when the third reversing pawl 425 is in abutment with the drive chain 413. The second ratchet drive assembly 43 includes a fourth forward pawl 434 and a fourth reverse pawl 435. The fourth forward pawl 434 is rotatably mounted on the pedal device 20 and is configured to abut against the transmission chain 413, thereby driving the transmission chain 413 such that the wheel 11 is rotated. The fourth positive pawl 434 has an open or closed state when the fourth positive pawl 434 is in the closed state, when the fourth positive pawl 434 is in abutment with the drive chain 413. The fourth reverse pawl 435 is rotatably mounted to the pedal device 20 and is adapted to abut against the drive chain 413 to drive the drive chain 413 such that the wheel 11 is rotated. The fourth reversing pawl 435 has an open or closed state, when the fourth reversing pawl 435 is in the closed state, the fourth reversing pawl 435 is in abutment with the drive chain 413. Specifically, the third forward pawl 424 and the third reverse pawl 425 are respectively located on a first side 4131 of the transmission chain 413, the fourth forward pawl 434 and the fourth reverse pawl 435 are respectively located on a second side 4132 of the transmission chain 413, the third forward pawl 424 and the fourth reverse pawl 435 are symmetrical with respect to the transmission chain 413, the third reverse pawl 425 and the fourth forward pawl 434 are symmetrical with respect to the transmission chain 413, the third reverse pawl 425 is located above the third forward pawl 424, and the fourth forward pawl 434 is located above the fourth reverse pawl 435.

Further, referring to fig. 15 to fig. 20, as an embodiment of the balance car according to the second embodiment of the present invention, the reversing mechanism 50 includes a second mounting base 56, a second rotating shaft 57, a third touch set 58, a fourth touch set 59, and a second friction member 501. The second mounting seat 56 is mounted on the vehicle body 10, and the second rotating shaft 57 is rotatably mounted on the second mounting seat 56. The third touch set 58 and the fourth touch set 59 are movably mounted on the vehicle body 10. The second rotating shaft 57 is connected to the third trigger group 58 and is used for pushing the third trigger group 58 to swing axially, and the fourth trigger group 59 is connected to the third trigger group 58, so that the swing is realized. The fourth trigger group 59 and the third trigger group 58 can be connected by a connecting rod or a connecting rope 533.

Specifically, as shown in fig. 16 to 19, the third trigger set 58 includes a first body 581, a first trigger 582, a second trigger 583, a third trigger 584, and a fourth trigger 585. The first body 581 is movably mounted on the vehicle body 10, and the second rotating shaft 57 is connected with the first body 581 and used for pushing the first body 581 to axially reciprocate. The first triggering part 582 is disposed on the first body 581, and is configured to push the third reverse pawl 425 to turn over when the pedal apparatus 20 moves to the highest point, so that the third reverse pawl 425 abuts against or separates from the transmission chain 413, thereby implementing a closing or opening operation of the third reverse pawl 425 when the pedal apparatus 20 moves to the highest point. When the wheel 11 rotates in the forward direction and the pedal device 20 moves to the highest point, the first triggering member 582 pushes the third reverse pawl 425 to turn over so that the third reverse pawl 425 abuts against the transmission chain 413, that is, the third reverse pawl 425 is in the closed state. When the wheel 11 rotates in the reverse direction and the step device 20 moves to the highest point, the first triggering part 582 pushes the third reverse pawl 425 to turn over so as to separate the third reverse pawl 425 from the transmission chain 413, i.e., the third reverse pawl 425 is in the open state. The second trigger 583 is disposed on the first body 581, and is configured to push the third forward pawl 424 to turn over when the pedal device 20 moves to the highest point, so that the third forward pawl 424 abuts against or separates from the transmission chain 413, and thus, the closing or opening operation of the third forward pawl 424 when the pedal device 20 moves to the highest point is achieved. When the wheel 11 rotates in the forward direction and the pedal device 20 moves to the highest point, the second trigger 583 pushes the third forward pawl 424 to turn over so that the third forward pawl 424 abuts against the transmission chain 413, that is, the third forward pawl 424 is in the closed state. When the wheel 11 rotates reversely and the pedal device 20 moves to the highest point, the second trigger 583 pushes the third forward pawl 424 to turn over so as to separate the third forward pawl 424 from the transmission chain 413, that is, the third forward pawl 424 is in the open state. The third triggering member 584 is disposed on the first body 581 and is configured to push the fourth reverse pawl 435 to turn over when the pedal apparatus 20 moves to the highest point, so that the fourth reverse pawl 435 is separated from or abutted to the transmission chain 413, thereby implementing a closing or opening operation of the fourth reverse pawl 435 when the pedal apparatus 20 moves to the highest point. When the wheel 11 rotates in the forward direction and the pedal device 20 moves to the highest point, the third trigger 584 pushes the fourth reverse pawl 435 to turn over, so that the fourth reverse pawl 435 is separated from the transmission chain 413, that is, the fourth reverse pawl 435 is in an open state; when the wheel 11 rotates in the reverse direction and the step device 20 moves to the highest point, the third trigger 584 pushes the fourth reverse pawl 435 to turn over, so that the fourth reverse pawl 435 abuts against the transmission chain 413, i.e., the fourth reverse pawl 435 is in a closed state. The fourth triggering member 585 is disposed on the first body 581, and is used for pushing the fourth forward pawl 434 to turn over when the pedal device 20 moves to the highest point, so that the fourth forward pawl 434 is separated from or abutted against the transmission chain 413, thereby implementing the closing or opening operation of the fourth forward pawl 434 when the pedal device 20 moves to the highest point. When the wheel 11 rotates in the forward direction and the pedal device 20 moves to the highest point, the fourth trigger 585 pushes the fourth forward pawl 434 to rotate backward so that the fourth forward pawl 434 is separated from the transmission chain 413, i.e., the fourth forward pawl 434 is in the open state. When the wheel 11 rotates reversely and the foot pedal 20 moves to the highest point, the fourth trigger 585 pushes the fourth forward pawl 434 to turn over so that the fourth forward pawl 434 abuts against the transmission chain 413, that is, the fourth forward pawl 434 is in the closed state. The first triggering member 582 and the second triggering member 583 are respectively located at one side of the transmission chain 413, the first triggering member 582 is located at one end far away from the transmission chain 413, the third triggering member 584 and the fourth triggering member 585 are respectively located at the other side of the transmission chain 413, and the fourth triggering member 585 is located at one end far away from the transmission chain 413.

Specifically, as shown in fig. 16 to 20, the fourth triggering set 59 includes a second body 591, a fifth triggering member 592, a sixth triggering member 593, a seventh triggering member 594, and an eighth triggering member 595. The second body 591 is movably mounted on the vehicle body 10 and connected with the first body 581, so as to be capable of axially and synchronously swinging along with the first body 581. A fifth triggering member 592 is disposed on the second body 591 for pushing the third reverse pawl 425 to turn over when the foothold 20 moves to the lowest point so as to separate or abut the third reverse pawl 425 from the transmission chain 413, thereby performing a closing or opening operation of the third reverse pawl 425 when the foothold 20 moves to the lowest point. When the wheel 11 rotates in the forward direction and the foot rest 20 moves to the lowest point, the fifth triggering member 592 pushes the third reverse pawl 425 to flip over to disengage the third reverse pawl 425 from the drive chain 413, i.e., when the third reverse pawl 425 is in the open state. When the wheel 11 rotates in the reverse direction and the foothold 20 moves to the lowest point, the fifth triggering member 592 pushes the third reverse pawl 425 to flip over so that the third reverse pawl 425 abuts against the transmission chain 413, i.e., the third reverse pawl 425 is in the closed state. A sixth triggering member 593 is disposed on the second body 591, and is used for pushing the third forward pawl 424 to turn over when the foot pedal 20 moves to the lowest point, so that the third forward pawl 424 is separated from or abutted to the transmission chain 413, thereby realizing the closing or opening operation of the third forward pawl 424 when the foot pedal 20 moves to the lowest point. When the wheel 11 rotates in the forward direction and the pedal device 20 moves to the lowest point, the sixth triggering member 593 pushes the third forward pawl 424 to turn over so as to separate the third forward pawl 424 from the transmission chain 413, i.e., the third forward pawl 424 is in the open state. When the wheel 11 rotates reversely and the foothold 20 moves to the lowest point, the sixth trigger 593 pushes the third forward pawl 424 to turn over so that the third forward pawl 424 abuts against the transmission chain 413, i.e. the third forward pawl 424 is in the closed state. A seventh trigger 594 is provided on the second body 591 for pushing the fourth reverse pawl 435 to turn over when the foothold 20 moves to the lowest point so as to make the fourth reverse pawl 435 abut against or separate from the transmission chain 413, thereby performing a closing or opening operation of the fourth reverse pawl 435 when the foothold 20 moves to the lowest point. When the wheel 11 rotates in the forward direction and the foot rest 20 moves to the lowest point, the seventh trigger 594 pushes the fourth reverse pawl 435 to rotate in the reverse direction, so that the fourth reverse pawl 435 abuts against the transmission chain 413, i.e., the fourth reverse pawl 435 is in the closed state. When the wheel 11 rotates in the reverse direction and the foothold 20 moves to the lowest point, the seventh trigger 594 pushes the fourth reverse pawl 435 to be turned over so that the fourth reverse pawl 435 is separated from the transmission chain 413, that is, the fourth reverse pawl 435 is in the open state. An eighth triggering member 595 is disposed on the second body 591 for pushing the fourth forward pawl 434 to turn over when the foot pedal 20 moves to the lowest point so as to make the fourth forward pawl 434 abut against or separate from the transmission chain 413, thereby achieving the closing or opening operation of the fourth forward pawl 434 when the foot pedal 20 moves to the lowest point. When the wheel 11 rotates in the forward direction and the foot pedal 20 moves to the lowest point, the eighth triggering member 595 pushes the fourth forward pawl 434 to turn over so that the fourth forward pawl 434 is closed with the transmission chain 413, i.e., the fourth forward pawl 434 is in the closed state. When the wheel 11 rotates reversely and the foothold 20 moves to the lowest point, the eighth triggering member 595 pushes the fourth forward direction claw 434 to turn over so as to separate the fourth forward direction claw 434 from the transmission chain 413, i.e., when the fourth forward direction claw 434 is in the open state. The fifth triggering member 592 and the sixth triggering member 593 are respectively located on one side of the transmission chain 413, the fifth triggering member 592 is located at one end far away from the transmission chain 413, the seventh triggering member 594 and the eighth triggering member 595 are respectively located on the other side 4132 of the transmission chain 413, and the eighth triggering member 595 is located at one end far away from the transmission chain 413.

As shown in fig. 18 to 19, the second friction member 501 is fixed to the second rotating shaft 57 and is in frictional contact with the wheel 11. Preferably, the second friction member 501 may be elastically fixed to the second rotating shaft 57 by a torsion spring 551 or the like, so that the second friction member 501 is in elastic frictional contact with the wheel 11. When the wheel 11 rotates in the forward direction, at this time, the second friction member 501, under the action of the friction force of the wheel 11, will drive the third touching group 58 to swing axially, when the pedal apparatus 20 moves to the highest point, the first triggering member 582 pushes the third reverse pawl 425 to flip so that the third reverse pawl 425 closes, the second triggering member 583 pushes the third forward pawl 424 to flip so that the third forward pawl 424 closes, the third triggering member 584 pushes the fourth reverse pawl 435 to open, the fourth triggering member 585 pushes the fourth forward pawl 434 to open, namely when the third forward pawl 424 and the third reverse pawl 425 simultaneously abut the drive chain 413 to lock the drive chain 413, when the foothold 20 is moved downward, the third forward direction pawl 424 is moved downward simultaneously with the third reverse direction pawl 425, and drives the transmission chain 413 to rotate in the forward direction synchronously, and the fourth forward pawl 434 and the fourth reverse pawl 435 are separated from the transmission chain 413 simultaneously, so that the interference of the forward rotation of the transmission chain 413 can be avoided. When the pedal device 20 moves to the lowest point, the fifth triggering member 592 pushes the third reverse pawl 425 to turn over so that the third reverse pawl 425 opens, the sixth triggering member 593 pushes the third forward pawl 424 to turn over so that the third forward pawl 424 opens, the seventh triggering member 594 pushes the fourth reverse pawl 435 to close, the eighth triggering member 595 pushes the fourth forward pawl 434 to close, that is, the third forward pawl 424 and the third reverse pawl 425 are simultaneously separated from the transmission chain 413 so as to avoid interference with the forward rotation of the transmission chain 413, the fourth forward pawl 434 and the fourth reverse pawl 435 are simultaneously abutted against the transmission chain 413 to lock the transmission chain 413, and when the pedal device 20 moves upward, the fourth forward pawl 434 and the fourth reverse pawl 435 move upward simultaneously and drive the transmission chain 413 to synchronously rotate forward.

Further, referring to fig. 16 to 30 together, as a specific implementation of the balance car provided by the second embodiment of the present invention, the reversing mechanism 50 further includes a resetting mechanism 60, and the resetting mechanism 60 includes a first resetting component 63 for controlling the resetting of the third forward pawl 424, a second resetting component 64 for controlling the resetting of the third reverse pawl 425, a third resetting component 65 for controlling the resetting of the fourth forward pawl 434, and a fourth resetting component 66 for controlling the resetting of the fourth reverse pawl 435. The first, second, third and

fourth reset assemblies

63, 64, 65 and 66 each include a buffer member 631, a third elastic member 632, a detent member 633 and a fourth elastic member 634. The blocking element 633 is fixed with the buffer element 631 in a matching clamping manner, and the fourth elastic element 634 is used for providing elastic thrust to enable the blocking element 633 and the buffer element 631 to keep elastic clamping, so that the buffer element 631 is fixed at a preset position. Specifically, one end of the third elastic element 632 of the first reset assembly 63 is connected to the buffer element 631 of the first reset assembly 63, and the other end is elastically connected to the third forward pawl 424. The third elastic member 632 of the second reset assembly 64 has one end connected to the buffer member 631 of the second reset assembly 64 and the other end elastically connected to the third reverse pawl 425. One end of the third elastic member 632 of the third reset assembly 65 is connected to the buffer member 631 of the third reset assembly 65, and the other end is elastically connected to the fourth forward pawl 434. The third elastic member 632 of the fourth returning member 66 has one end connected to the buffer member 631 of the fourth returning member 66 and the other end elastically connected to the fourth reverse pawl 435.

Further, referring to fig. 22 to 26, as an embodiment of the balance car according to the second embodiment of the present invention, the buffer 631 is provided with an opening detent and a closing detent. When the blocking element 633 corresponding to the third forward pawl 424 is engaged with the opening blocking position of the corresponding buffer element 631, the third forward pawl 424 can be kept in the open state (i.e., the third forward pawl 424 is kept separated from the transmission chain 413); when the blocking element 633 corresponding to the third forward pawl 424 is engaged with the closing blocking position of the corresponding bumper 631, the third forward pawl 424 can be maintained in the closed state (i.e., the third forward pawl 424 is maintained in contact with the drive chain 413).

When the blocking piece 633 corresponding to the third reverse pawl 425 engages the opening blocking position on the corresponding buffer piece 631, the third reverse pawl 425 can be kept in the open state (i.e., the third reverse pawl 425 can be kept away from the drive chain 413); when the blocking piece 633 corresponding to the third reverse pawl 425 engages the closing blocking piece of the corresponding buffer member 631, the third reverse pawl 425 can be maintained in the closed state (i.e., the state in which the third reverse pawl 425 is in contact with the drive chain 413).

When the catch member 633 corresponding to the fourth forward pawl 434 is engaged with the opening catch on the corresponding bumper 631, the fourth forward pawl 434 can be maintained in the open state (i.e., the fourth forward pawl 434 is maintained in the separated state from the drive chain 413), and when the catch member 633 corresponding to the fourth forward pawl 434 is engaged with the closing catch on the corresponding bumper 631, the fourth forward pawl 434 can be maintained in the closed state (i.e., the fourth forward pawl 434 is maintained in the contact state with the drive chain 413).

When the catch 633 corresponding to the fourth reverse pawl 435 is engaged with the opening catch on the corresponding cushion 631, the fourth reverse pawl 435 may be kept in the open state (i.e., the fourth reverse pawl 435 is kept in the separated state from the drive chain 413), and when the catch 633 corresponding to the fourth reverse pawl 435 is engaged with the closing catch on the corresponding cushion 631, the fourth reverse pawl 435 may be kept in the closed state (i.e., the fourth reverse pawl 435 is kept in contact with the drive chain 413).

The reversing mechanism 50 pushes the buffer member 631 to turn over, and then the third elastic member 632 elastically pushes the third forward pawl 424, the third reverse pawl 425, the fourth forward pawl 434 and the fourth reverse pawl 435 to turn over, so that the opening or closing operation of the third forward pawl 424, the third reverse pawl 425, the fourth forward pawl 434 and the fourth reverse pawl 435 is realized, and the situation that the third forward pawl 424, the third reverse pawl 425, the fourth forward pawl 434 and the fourth reverse pawl 435 cannot be forcibly opened due to the fact that the friction force between the third forward pawl 424, the third reverse pawl 425, the fourth forward pawl 434 and the fourth reverse pawl 435 and the transmission chain 413 is too large is avoided. And the setting of the blocking member 633 and the fourth elastic member 634 is matched to fix the buffer member 631 at a predetermined position, so that the third forward pawl 424, the third reverse pawl 425, the fourth forward pawl 434 and the fourth reverse pawl 435 maintain an opened or closed state.

Further, referring to fig. 22 to 23, as an embodiment of the balance car according to the second embodiment of the present invention, the pedal device 20 is provided with a first guide rod 4251, a second guide rod 4252, a third guide rod 4253, and a fourth guide rod 4254 at positions corresponding to the third reverse pawl 425, respectively, and the first guide rod 4251, the second guide rod 4252, the third guide rod 4253, and the fourth guide rod 4254 are movably installed on the pedal device 20 up and down. The first guide rod 4251 and the second guide rod 4252 are disposed above the third reverse pawl 425, and one end of the first guide rod 4251 contacting the first contact member 582 is located at one end far away from the transmission chain 413, the third guide rod 4253 and the fourth guide rod 4254 are disposed below the third reverse pawl 425, and one end of the third guide rod 4253 contacting the fifth contact member 592 is located at one end far away from the transmission chain 413.

The first link 4251 is adapted to cooperate with the first trip 582 to push the third reversing pawl 425 open when the wheel 11 is rotated in the reverse direction. Specifically, when the wheel 11 rotates reversely, the first contact member 582 is opposite to the first guide rod 4251, and when the pedal apparatus 20 moves to the highest point, the first contact member 582 pushes the first guide rod 4251 to move downward, so that the first guide rod 4251 pushes the buffer member 631 to reverse, and then the third elastic member 632 elastically pushes the third reverse pawl 425 to reverse, so that the opening operation of the third reverse pawl 425 at the highest point is realized, and at this time, the blocking member 633 is blocked in the opening blocking position, so that the third reverse pawl 425 keeps the opening state.

Second link 4252 is adapted to cooperate with first trip 582 to urge third reverse pawl 425 closed upon forward rotation of wheel 11. Specifically, when the wheel 11 rotates in the forward direction, the first contact member 582 is aligned with the second guide rod 4252, and when the pedal device 20 moves to the highest point, the first contact member 582 pushes the second guide rod 4252 to move downward, so that the second guide rod 4252 pushes the buffer member 631 to turn forward, and then the third elastic member 632 elastically pushes the third reverse pawl 425 to turn forward, so that the closing operation of the third reverse pawl 425 at the highest point is realized, and at this time, the blocking member 633 is blocked in the closed blocking position, so that the third reverse pawl 425 keeps the closed state.

Third link 4253 is adapted to cooperate with fifth trolley 592 to urge third reverse pawl 425 closed upon reverse rotation of wheel 11. Specifically, when the wheel 11 rotates reversely, the fifth contact member 592 faces the third guide rod 4253, and when the pedal device 20 moves to the lowest point, the fifth contact member 592 pushes the third guide rod 4253 to move upward, so that the third guide rod 4253 pushes the buffer member 631 to flip forward, and then the third elastic member 632 elastically pushes the third reverse pawl 425 to flip forward, so that the closing operation of the third reverse pawl 425 at the lowest point is realized, and at this time, the blocking member 633 is blocked in the closing blocking position, so that the third reverse pawl 425 keeps the closing state.

The fourth link 4254 is adapted to cooperate with the fifth trolley 592 to urge the third reverse pawl 425 open upon forward rotation of the wheel 11. Specifically, when the wheel 11 rotates in the forward direction, the fifth contact member 592 is aligned with the fourth guide rod 4254, and when the pedal apparatus 20 moves to the lowest point, the fifth contact member 592 pushes the fourth guide rod 4254 to move upward, so that the fourth guide rod 4254 pushes the buffer member 631 to flip reversely, and then the third elastic member 632 elastically pushes the third reverse pawl 425 to flip reversely, so that the opening operation of the third reverse pawl 425 at the lowest point is realized, and at this time, the blocking member 633 is blocked in the closed blocking position, so that the third reverse pawl 425 keeps the open state. Here, "reverse reversal" refers to a reversal direction for separating the third reverse pawl 425 from the drive chain 413, and "forward reversal" refers to a reversal direction for contacting the third reverse pawl 425 with the drive chain 413, and the forward direction and the reverse direction are only relative directions for indicating rotation, and are not used for indicating a specific direction.

As shown in fig. 22, 24, and 25, the pedal device 20 is provided with a fifth link 4241, a sixth link 4242, a seventh link 4243, and an eighth link 4244 at positions corresponding to the third forward pawl 424, and the fifth link 4241, the sixth link 4242, the seventh link 4243, and the eighth link 4244 are vertically movably attached to the pedal device 20. The fifth guide rod 4241 and the sixth guide rod 4242 are disposed above the third forward pawl 424, one end of the fifth guide rod 4241 contacting the second trigger 583 is located at one end far away from the transmission chain 413, the seventh guide rod 4243 and the eighth guide rod 4244 are disposed below the third reverse pawl 425, and one end of the seventh guide rod 4243 contacting the sixth trigger 593 is located at one end far away from the transmission chain 413.

The fifth link 4241 is adapted to cooperate with the second trigger 583 to push the third forward pawl 424 open when the wheel 11 rotates in the reverse direction. Specifically, when the wheel 11 rotates in the reverse direction, the second contact member 583 is directly opposite to the fifth guide rod 4241, when the pedal device 20 moves to the highest point, the second contact member 583 pushes the fifth guide rod 4241 to move downward, so that the fifth guide rod 4241 pushes the buffer member 631 to turn over in the reverse direction, and then the third elastic member 632 elastically pushes the third forward pawl 424 to turn over in the reverse direction, so that the opening operation of the third forward pawl 424 at the highest point is realized, and the blocking member 633 is blocked in the opening blocking position, so that the third forward pawl 424 keeps the opening state.

Sixth link 4242 is adapted to cooperate with second trigger 583 to urge third forward pawl 424 closed when wheel 11 is rotating in the forward direction. Specifically, when the wheel 11 rotates in the forward direction, the second contact member 583 is opposite to the sixth guide rod 4242, and when the pedal device 20 moves to the highest point, the second contact member 583 pushes the sixth guide rod 4242 to move downward, so that the sixth guide rod 4242 pushes the buffer member 631 to turn over in the forward direction, and then the third elastic member 632 elastically pushes the third forward pawl 424 to turn over in the forward direction, so that the closing operation of the third forward pawl 424 at the highest point is realized, and the blocking member 633 is blocked in the closed blocking position, so that the third forward pawl 424 keeps the closed state.

The seventh link 4243 is adapted to cooperate with the sixth trolley 593 to urge the third forward pawl 424 closed when the wheel 11 rotates in the reverse direction. Specifically, when the wheel 11 rotates in the reverse direction, the sixth contact member 593 is aligned with the seventh guide rod 4243, and when the pedal apparatus 20 moves to the lowest point, the sixth contact member 593 pushes the seventh guide rod 4243 to move upward, so that the third guide rod 4253 pushes the buffer 631 to turn forward, and then the third elastic member 632 elastically pushes the third forward pawl 424 to turn forward, so that the closing operation of the third forward pawl 424 at the lowest point is realized, and the blocking member 633 is blocked in the closed blocking position, so that the third forward pawl 424 keeps the closed state.

Eighth link 4244 is adapted to cooperate with sixth trolley 593 to urge third forward pawl 424 open when wheel 11 is rotating in the forward direction. Specifically, when the wheel 11 rotates in the forward direction, the sixth contact member 593 is aligned with the eighth guide rod 4244, and when the pedal apparatus 20 moves to the lowest point, the sixth contact member 593 pushes the eighth guide rod 4244 to move upward, so that the eighth guide rod 4244 pushes the buffer 631 to turn over in the reverse direction, and then the third elastic member 632 elastically pushes the third forward pawl 424 to turn over in the reverse direction, so that the opening operation of the third forward pawl 424 at the lowest point is realized, and the blocking member 633 is blocked in the opening blocking position, so that the third forward pawl 424 keeps the open state.

As shown in fig. 22 and 26, a ninth guide rod 4341, a tenth guide rod 4342, an eleventh guide rod 4343, a twelfth guide rod 4344, a ninth guide rod 4341, a tenth guide rod 4342, an eleventh guide rod 4343, and a twelfth guide rod 4344 are respectively disposed at positions of the pedal device 20 corresponding to the fourth forward direction pawl 434, and are movably installed on the pedal device 20 up and down. The ninth guide rod 4341 and the tenth guide rod 4342 are disposed above the fourth forward pawl 434, and one end of the tenth guide rod 4342 contacting the fourth trigger 585 is located at an end away from the transmission chain 413, the eleventh guide rod 4343 and the twelfth guide rod 4344 are disposed below the fourth forward pawl 434, and one end of the twelfth guide rod 4344 contacting the fourth trigger 585 is located at an end away from the transmission chain 413.

The ninth guide bar 4341 is adapted to cooperate with the fourth trigger 585 to urge the fourth forward pawl 434 closed when the wheel 11 rotates in the reverse direction. Specifically, when the wheel 11 rotates in the reverse direction, the fourth trigger 585 is directly opposite to the ninth guide rod 4341, and when the pedal device 20 moves to the highest point, the fourth trigger 585 pushes the ninth guide rod 4341 to move downward, so that the ninth guide rod 4341 pushes the buffer 631 to turn forward, and then the third elastic element 632 elastically pushes the fourth forward pawl 434 to turn forward, so that the fourth forward pawl 434 is closed at the highest point, and at this time, the blocking element 633 is blocked in the closed blocking position, so that the fourth forward pawl 434 keeps the closed state.

The tenth guide rod 4342 is adapted to cooperate with the fourth trigger 585 to urge the fourth forward pawl 434 open when the wheel 11 is rotating in the forward direction. Specifically, when the wheel 11 rotates in the forward direction, the fourth contact element 585 is aligned with the tenth guide rod 4342, and when the pedal device 20 moves to the highest point, the fourth contact element 585 pushes the tenth guide rod 4342 to move downward, so that the tenth guide rod 4342 pushes the buffer element 631 to flip in the reverse direction, and then the third elastic element 632 elastically pushes the fourth forward pawl 434 to flip in the reverse direction, thereby realizing the opening operation of the fourth forward pawl 434 at the highest point, and at this time, the blocking element 633 is blocked in the opening blocking position, so that the fourth forward pawl 434 maintains the open state.

The eleventh guide 4343 is adapted to cooperate with the eighth trolley 595 to push the fourth forward pawl 434 open when the wheel 11 rotates in the reverse direction. Specifically, when the wheel 11 rotates in the reverse direction, the eighth triggering member 595 is opposite to the eleventh guide rod 4343, and when the pedal device 20 moves to the lowest point, the eighth triggering member 595 pushes the eleventh guide rod 4343 to move upward, so that the eleventh guide rod 4343 pushes the buffering member 631 to flip in the reverse direction, and then the third elastic member 632 elastically pushes the fourth forward pawl 434 to flip in the reverse direction, thereby implementing the opening operation of the fourth forward pawl 434 at the lowest point, and at this time, the blocking member 633 is blocked in the opening blocking position, so that the fourth forward pawl 434 maintains the open state.

The twelfth guide rod 4344 is configured to cooperate with the eighth trolley 595 to urge the fourth forward pawl 434 closed when the wheel 11 is rotating in the forward direction. Specifically, when the wheel 11 rotates in the forward direction, the eighth triggering member 595 is aligned with the twelfth guide rod 4344, and when the pedal device 20 moves to the lowest point, the eighth triggering member 595 pushes the twelfth guide rod 4344 to move upward, so that the twelfth guide rod 4344 pushes the buffer member 631 to turn forward, and then the third elastic member 632 elastically pushes the fourth forward pawl 434 to turn forward, thereby implementing the closing operation of the fourth forward pawl 434 at the lowest point, and at this time, the blocking member 633 is blocked in the closed blocking position, so that the fourth forward pawl 434 maintains the closed state.

As shown in fig. 22, 27 and 28, a thirteenth guide rod 4351, a fourteenth guide rod 4352, a fifteenth guide rod 4353 and a sixteenth guide rod 4354 are respectively disposed at positions of the pedal device 20 corresponding to the fourth reverse pawl 435, and the thirteenth guide rod 4351, the fourteenth guide rod 4352, the fifteenth guide rod 4353 and the sixteenth guide rod 4354 are movably mounted on the pedal device 20 up and down. The thirteenth guide rod 4351 and the fourteenth guide rod 4352 are disposed above the fourth reverse pawl 435, and one end of the fourteenth guide rod 4352 contacting the third contacting member 584 is located at an end away from the transmission chain 413, the fifteenth guide rod 4353 and the sixteenth guide rod 4354 are disposed below the fourth reverse pawl 435, and one end of the sixteenth guide rod 4354 contacting the seventh contacting member 594 is located at an end away from the transmission chain 413.

The thirteenth guide bar 4351 is adapted to cooperate with the third trip 584 to push the fourth reverse pawl 435 closed when the wheel 11 rotates in the reverse direction. Specifically, when the wheel 11 rotates in the reverse direction, the third contact member 584 faces the thirteenth guide rod 4351, and when the pedal device 20 moves to the highest point, the third contact member 584 pushes the thirteenth guide rod 4351 to move downward, so that the thirteenth guide rod 4351 pushes the buffer member 631 to turn over in the forward direction, and then the third elastic member 632 elastically pushes the fourth reverse pawl 435 to turn over in the forward direction, so that the fourth reverse pawl 435 is closed at the highest point, and at this time, the blocking member 633 is blocked in the closed blocking position, so that the fourth reverse pawl 435 keeps the closed state.

Fourteenth guide 4352 is adapted to cooperate with third trip 584 to urge fourth reverse pawl 435 open when wheel 11 is rotating in the forward direction. Specifically, when the wheel 11 rotates in the forward direction, the third contact 584 is aligned with the fourteenth guide rod 4352, and when the pedal device 20 moves to the highest point, the third contact 584 pushes the fourteenth guide rod 4352 to move downward, so that the fourteenth guide rod 4352 pushes the buffer 631 to turn over in the reverse direction, and then the third elastic element 632 elastically pushes the fourth reverse pawl 435 to turn over in the reverse direction, so that the opening operation of the fourth reverse pawl 435 at the highest point is realized, and at this time, the blocking element 633 is blocked in the opening blocking position, so that the fourth reverse pawl 435 keeps in the open state.

The fifteenth guide bar 4353 is adapted to cooperate with the seventh trip 594 to push the fourth reverse pawl 435 open when the wheel 11 rotates in the reverse direction. Specifically, when the wheel 11 rotates in the reverse direction, the seventh contacting member 594 is opposite to the fifteenth guide rod 4353, and when the pedal device 20 moves to the lowest point, the seventh contacting member 594 pushes the fifteenth guide rod 4353 to move upward, so that the fifteenth guide rod 4353 pushes the buffer member 631 to flip in the reverse direction, and then the third elastic member 632 elastically pushes the fourth reverse pawl 435 to flip in the reverse direction, so that the opening operation of the fourth reverse pawl 435 at the lowest point is realized, and the blocking member 633 is blocked in the opening blocking position, so that the fourth reverse pawl 435 keeps in the open state.

Sixteenth guide 4354 is adapted to cooperate with seventh trigger 594 to urge fourth reverse pawl 435 closed during forward rotation of wheel 11. Specifically, when the wheel 11 rotates in the forward direction, the seventh trigger 594 is opposite to the sixteenth guide rod 4354, and when the pedal device 20 moves to the lowest point, the seventh trigger 594 pushes the sixteenth guide rod 4354 to move upward, so that the sixteenth guide rod 4354 pushes the buffer 631 to turn forward, and then the third elastic element 632 elastically pushes the fourth reverse pawl 435 to turn forward, so that the fourth reverse pawl 435 is closed at the lowest point, and the blocking element 633 is blocked in the closed blocking position, so that the fourth reverse pawl 435 keeps the closed state.

Further, referring to fig. 17 to 19 together, as a specific embodiment of the balance car provided by the second embodiment of the present invention, the car body 10 is provided with a first movable sleeve 13 and a second movable sleeve 14, the first body 581 is axially movably inserted into the first movable sleeve 13, and the second body 591 is axially movably inserted into the second movable sleeve 14, so that the axial swinging of the first body 581 and the second body 591 is realized.

Further, referring to fig. 16 to 19 together, as an embodiment of the balance car according to the second embodiment of the present invention, the reversing mechanism 50 further includes a manual shifting mechanism 70 for manually shifting the direction of the wheels 11. The specific structure of the manual shift mechanism 70 is the same as the specific structure of the manual shift mechanism 70 in the first embodiment of the present invention, and will not be described herein again. In this embodiment, the wire shifting device 71 is sleeved on the second mounting seat 56, the second rotating shaft 57 is provided with a swinging rod 571, and the swinging rod 571 is used for pushing the first body 581 to swing axially, so as to drive the third touch set 58 to swing when the direction is manually switched. When the wire shifter 71 is in the non-manual gear position, the manual shift mechanism 70 does not interfere with the third touch set 58, so that the second friction member 501 can perform the automatic reversing operation according to the rotation direction of the wheel 11. When the wire shifter 71 is in the forward gear position, the manual shift mechanism 70 overcomes the friction force of the wheel 11 received by the second friction member 501 and drives the third touch set 58 to swing in the forward direction, so as to force the reverse direction. When the wire shifter 71 is in the reverse gear position, the manual shift mechanism 70 overcomes the friction force of the wheel 11 on the second friction member 501 and drives the third touch set 58 to swing in the reverse direction, so as to force the reverse direction.

For example, when the wheel 11 needs to be changed from forward to backward, the wire shifter 71 is shifted to a reverse gear, the swinging rod 571 drives the third touching group 58 to swing in a reverse direction, at this time, the first touching member 582 is opposite to the first guide rod 4251, and the first touching member 582 and the second guide rod 4252 are staggered with each other, so that the forced opening operation of the third reverse pawl 425 at the highest point is realized; the second contact member 583 is opposite to the fifth guide rod 4241, and the second contact member 583 and the sixth guide rod 4242 are staggered with each other, so that the forced opening operation of the third positive pawl 424 at the highest point is realized; the fourth trigger 585 is opposite to the ninth guide rod 4341, and the fourth trigger 585 is staggered with the tenth guide rod 4342, so that the forced closing operation of the fourth positive pawl 434 at the highest point is realized; the third contacting element 584 faces the thirteenth guide rod 4351, and the third contacting element 584 is staggered with the fourteenth guide rod 4352, so that the fourth reverse pawl 435 is forcibly closed at the highest point, and when the pedal device 20 moves downward, the fourth forward pawl 434 and the fourth reverse pawl 435 are simultaneously abutted against the transmission chain 413 to lock the transmission chain 413, and the transmission chain 413 is driven to rotate in the reverse direction. At the moment, the fifth contact member 592 is opposite to the third guide rod 4253, and the fifth contact member 592 and the fourth guide rod 4254 are staggered with each other, so that the forced closing operation of the third reverse pawl 425 at the lowest point is realized; the sixth touch piece 593 is opposite to the seventh guide rod 4243, and the sixth touch piece 593 is staggered with the eighth guide rod 4244, so that the forced closing operation of the third positive pawl 424 at the lowest point is realized; the eighth triggering member 595 is opposite to the eleventh guiding rod 4343, and the eighth triggering member 595 and the twelfth guiding rod 4344 are staggered with each other, so that the forced opening operation of the fourth positive pawl 434 at the lowest point is realized; the seventh touching member 594 is opposite to the fifteenth guide rod 4353, and the seventh touching member 594 and the sixteenth guide rod 4354 are staggered from each other, so that the fourth reverse pawl 435 is forcibly opened at the lowest point, and when the pedal device 20 moves upward, the third forward pawl 424 and the third reverse pawl 425 abut against the transmission chain 413 at the same time to lock the transmission chain 413, and drive the transmission chain 413 to rotate in the reverse direction, so as to avoid interference of the rotation direction of the wheel 11. Similarly, when the wheel 11 needs to be changed from backward to forward, the operation is opposite to the operation of changing forward to backward, and the description thereof is omitted. By providing the manual shift mechanism 70, the forward rotation or the reverse rotation of the wheel 11 is manually switched.

Further, as a specific implementation manner of the balance car according to the second embodiment of the present invention, the third forward pawl 424, the third reverse pawl 425, the fourth forward pawl 434, and the fourth reverse pawl 435 are all friction pawls, and the surfaces of the transmission chain 413 contacting the third forward pawl 424, the third reverse pawl 425, the fourth forward pawl 434, and the fourth reverse pawl 435 are friction surfaces, so that the transmission chain 413 is driven to rotate by a mutual friction force. It should be noted that the arrangement of the third forward direction pawl 424, the third reverse direction pawl 425, the fourth forward direction pawl 434 and the fourth reverse direction pawl 435 is not limited to this, for example, in other preferred embodiments of the present invention, the third forward direction pawl 424, the third reverse direction pawl 425, the fourth forward direction pawl 434 and the fourth reverse direction pawl 435 may also be multi-tooth pawls, the transmission chain 413 is a multi-tooth transmission chain 413, and the transmission is more precise and accurate through the cooperation of the multi-tooth pawls and the multi-tooth transmission chain 413.

when the wheel 11 rotates in the forward direction, the third trigger group 58 swings in the forward direction, at this time, the first trigger 582 is opposite to the second guide rod 4252, and the first trigger 582 and the first guide rod 4251 are staggered with each other, so that the forced closing operation of the third reverse pawl 425 at the highest point is realized; the second contact member 583 is opposite to the sixth guide rod 4242, and the second contact member 583 and the fifth guide rod 4241 are staggered with each other, so that the forced closing operation of the third positive pawl 424 at the highest point is realized; the fourth trigger 585 is opposite to the tenth guide rod 4342, and the fourth trigger 585 is staggered with the ninth guide rod 4341, so that the forced opening operation of the fourth positive pawl 434 at the highest point is realized; the third contact 584 is opposite to the fourteenth guide 4352, and the third contact 584 is staggered with the thirteenth guide 4351, so that the forced opening operation of the fourth reverse pawl 435 at the highest point is realized; at this time, the fifth contact member 592 is opposite to the fourth guide rod 4254, and the fifth contact member 592 and the third guide rod 4253 are staggered with each other, so that the forced opening operation of the third reverse pawl 425 at the lowest point is realized; the sixth trigger 593 is opposite to the eighth guide rod 4244, and the sixth trigger 593 is staggered with the seventh guide rod 4243, so that the forced opening operation of the third positive pawl 424 at the lowest point is realized; the eighth touching member 595 faces the twelfth guide rod 4344, and the eighth touching member 595 and the eleventh guide rod 4343 are staggered with each other, so as to realize the forced closing operation of the fourth positive pawl 434 at the lowest point; the seventh trigger 594 is aligned with the sixteenth guide 4354, and the seventh trigger 594 and the fifteenth guide 4353 are offset from each other, so that the fourth reverse pawl 435 is forcibly closed at the lowest point. Since the third reverse pawl 425 and the third forward pawl 424 are closed at the highest point and the fourth forward pawl 434 and the fourth reverse pawl 435 are opened, when the pedal device 20 moves downward from the highest point, the third reverse pawl 425 and the third forward pawl 424 simultaneously abut against the transmission chain 413 to lock the transmission chain 413 and drive the transmission chain 413 to rotate in the forward direction. When the foot pedal 20 moves to the lowest point, the third reverse pawl 425 and the third forward pawl 424 are opened, the fourth forward pawl 434 and the fourth reverse pawl 435 are closed, and when the foot pedal 20 moves upward from the lowest point, the fourth forward pawl 434 and the fourth reverse pawl 435 simultaneously abut against the transmission chain 413 to lock the transmission chain 413 and drive the transmission chain 413 to rotate in the forward direction, so that the forward alternating process of the single wheel 11 is completed, and the wheel 11 continuously advances. Similarly, the process of reversing and alternating the single wheel 11 can be realized, and will not be described herein.

The principle of commutation of a single wheel 11 is as follows:

when the third reverse pawl 425 and the third forward pawl 424 are in the operating state (i.e., the third reverse pawl 425 and the third forward pawl 424 drive the drive chain 413 to rotate), the fourth forward pawl 434 and the fourth reverse pawl 435 are in the open state (i.e., the fourth forward pawl 434 and the fourth reverse pawl 435 do not drive the chain to rotate); if the pedal device 20 on the same side moves downwards, the third reverse pawl 425 and the third forward pawl 424 synchronously move downwards, the third reverse pawl 425 and the third forward pawl 424 abut against the transmission chain 413 simultaneously to lock the transmission chain 413, and drive the transmission chain 413 to rotate in the forward direction, so that the forward rotation of the wheel 11 is realized; if the pedal device 20 on the same side moves upward, the third reverse pawl 425 and the third forward pawl 424 move upward synchronously, and the third reverse pawl 425 and the third forward pawl 424 drive the transmission chain 413 to rotate reversely, so that the wheel 11 rotates reversely.

When the fourth forward direction pawl 434 and the fourth reverse direction pawl 435 are in an operating state (i.e. the fourth forward direction pawl 434 and the fourth reverse direction pawl 435 drive the transmission chain 413 to rotate), when third reverse pawl 425 and third forward pawl 424 are in the open position (i.e., third reverse pawl 425 and third forward pawl 424 do not drive chain rotation), if pedal assembly 20 on the same side is moved downward, when fourth forward pawl 434 and fourth reverse pawl 435 are simultaneously moved downward, the fourth forward direction pawl 434 and the fourth reverse direction pawl 435 drive the transmission chain 413 to rotate reversely, so as to realize the reverse rotation of the wheel 11, if the pedal device 20 on the same side moves upwards, at this time, the fourth forward direction pawl 434 and the fourth reverse direction pawl 435 move upwards synchronously, the fourth forward direction pawl 434 and the fourth reverse direction pawl 435 drive the transmission chain 413 to rotate in the forward direction, so as to realize the forward rotation of the wheel 11.

The working principle of the forward movement, the backward movement and the pivot rotation of the balance car according to the second embodiment of the present invention is as follows:

firstly, when the left third reverse pawl 425, the left third forward pawl 424, the right fourth forward pawl 434 and the right fourth reverse pawl 435 are in an operating state, the left fourth forward pawl 434, the left fourth reverse pawl 435, the right third reverse pawl 425 and the right third forward pawl 424 are in an open state, and at this time, the balance car can realize forward or backward operation, which specifically includes the following two conditions:

(1) when the left pedal device 20 is stepped downwards, the left pedal device 20 drives the left third reverse pawl 425 and the left third forward pawl 424 to move downwards, and at the same time, the left third reverse pawl 425 and the left third forward pawl 424 are simultaneously abutted to the transmission chain 413 to lock the left transmission chain 413 and drive the left transmission chain 413 to rotate in the forward direction, so that the left wheel 11 rotates in the forward direction; the right pedal device 20 is driven by the reverse transmission mechanism 30 to move upwards, and at this time, the right fourth forward pawl 434 and the right fourth reverse pawl 435 are simultaneously abutted to the right transmission chain 413 to lock the right transmission chain 413 and drive the right transmission chain 413 to rotate in the forward direction, so that the right wheel 11 rotates in the forward direction, that is, the left wheel 11 and the right wheel 11 rotate in the forward direction simultaneously, and the balance car is in a forward state at this time.

(2) When the right pedal device 20 is pedaled downwards, the right pedal device 20 drives the right fourth forward pawl 434 and the right fourth reverse pawl 435 to move downwards, and at the moment, the right fourth forward pawl 434 and the right fourth reverse pawl 435 drive the right transmission chain 413 to rotate reversely, so that the right wheel 11 rotates reversely; the left pedal device 20 is driven by the reverse driving mechanism 30 to move upward, and at this time, the left third reverse pawl 425 and the left third forward pawl 424 drive the left driving chain 413 to rotate in reverse, so that the left wheel 11 rotates in reverse, that is, the simultaneous reverse rotation of the left wheel 11 and the right wheel 11 is realized, and at this time, the balance car is in a backward state.

Secondly, when the left fourth forward pawl 434, the left fourth reverse pawl 435, the right third reverse pawl 425 and the right third forward pawl 424 are in the working state, the left third reverse pawl 425, the left third forward pawl 424, the right fourth forward pawl 434 and the right fourth reverse pawl 435 are in the opening state, and at this time, the balance car can realize forward or backward operation, which specifically includes the following two conditions:

(1) when the right pedal device 20 is stepped down, the right pedal device 20 drives the right third reverse pawl 425 and the right third forward pawl 424 to move down, and at the moment, the right third reverse pawl 425 and the right third forward pawl 424 drive the right transmission chain 413 to rotate in the forward direction, so that the right wheel 11 rotates in the forward direction; the left pedal device 20 is driven by the reverse transmission mechanism 30 to move upwards, and at this time, the left fourth forward pawl 434 and the left fourth reverse pawl 435 drive the left transmission chain 413 to rotate forward, so that the left wheel 11 rotates forward, that is, the simultaneous forward rotation of the left wheel 11 and the right wheel 11 is realized, and at this time, the balance car is in a forward state.

(2) When the left pedal device 20 is pedaled downwards, the left pedal device 20 drives the left fourth forward pawl 434 and the left fourth reverse pawl 435 to move downwards, and at the moment, the left fourth forward pawl 434 and the left fourth reverse pawl 435 drive the left transmission chain 413 to rotate reversely, so that the left wheel 11 rotates reversely; the right pedal device 20 is driven by the reverse transmission mechanism 30 to move upward, and at this time, the right third reverse pawl 425 and the right third forward pawl 424 drive the right transmission chain 413 to rotate in the reverse direction, so that the right wheel 11 rotates in the reverse direction, that is, the left wheel 11 and the right wheel 11 rotate in the reverse direction at the same time, and the balance car is in a backward state at this time.

Thirdly, when the left fourth forward pawl 434, the left fourth reverse pawl 435, the right fourth forward pawl 434 and the right fourth reverse pawl 435 are in a working state, the left third reverse pawl 425, the left third forward pawl 424, the right third reverse pawl 425 and the right third forward pawl 424 are in an open state, and at this time, the balance car can realize the pivot rotation operation, which specifically includes the following two conditions:

(1) when the left pedal device 20 is pedaled downwards, the left pedal device 20 drives the left fourth forward pawl 434 and the left fourth reverse pawl 435 to move downwards, and at the moment, the left fourth forward pawl 434 and the left fourth reverse pawl 435 drive the left transmission chain 413 to rotate reversely, so that the left wheel 11 rotates reversely; the right pedal device 20 is driven by the reverse transmission mechanism 30 to move upward, and at this time, the right fourth forward pawl 434 and the right fourth reverse pawl 435 drive the right transmission chain 413 to rotate forward, so that the right wheel 11 rotates forward, that is, the reverse rotation of the left wheel 11 and the forward rotation of the right wheel 11 are realized, and at this time, the balance car is in an in-situ rotation state.

(2) When the right pedal device 20 is pedaled downwards, the right pedal device 20 drives the right fourth forward pawl 434 and the right fourth reverse pawl 435 to move downwards, and at the moment, the right fourth forward pawl 434 and the right fourth reverse pawl 435 drive the right transmission chain 413 to rotate reversely, so that the right wheel 11 rotates reversely; the left pedal device 20 is driven by the reverse transmission mechanism 30 to move upward, and at this time, the left fourth forward pawl 434 and the left fourth reverse pawl 435 drive the left transmission chain 413 to rotate forward, so that the left wheel 11 rotates forward, that is, the forward rotation of the left wheel 11 and the reverse rotation of the right wheel 11 are realized, and at this time, the balance car is in an in-situ rotation state.

Fourthly, when the left third reverse pawl 425, the left third forward pawl 424, the right third reverse pawl 425 and the right third forward pawl 424 are in a working state, the left fourth forward pawl 434, the left fourth reverse pawl 435, the right fourth forward pawl 434 and the right fourth reverse pawl 435 are in an opening state, and at this time, the balance car can realize the pivot rotation operation, which specifically includes the following two conditions:

(1) when the left pedal device 20 is stepped down, the left pedal device 20 drives the left third reverse pawl 425 and the left third forward pawl 424 to move down, and at this time, the left third reverse pawl 425 and the left third forward pawl 424 drive the left transmission chain 413 to rotate in the forward direction, so that the left wheel 11 rotates in the forward direction; the right pedal device 20 is driven by the reverse driving mechanism 30 to move upward, and at this time, the right third reverse pawl 425 and the right third forward pawl 424 drive the right driving chain 413 to rotate in reverse, so that the right wheel 11 rotates in reverse, that is, the forward rotation of the left wheel 11 and the reverse rotation of the right wheel 11 are realized, and at this time, the balance car is in an in-situ rotation state.

(2) When the right pedal device 20 is stepped down, the right pedal device 20 drives the right third reverse pawl 425 and the right third forward pawl 424 to move down, and at this time, the right third reverse pawl 425 and the right third forward pawl 424 drive the right transmission chain 413 to rotate in the forward direction, so that the right wheel 11 rotates in the forward direction; the left pedal device 20 is driven by the reverse driving mechanism 30 to move upward, and at this time, the left third reverse pawl 425 and the left third forward pawl 424 drive the left driving chain 413 to rotate in reverse, so that the left wheel 11 rotates in reverse, that is, the reverse rotation of the left wheel 11 and the forward rotation of the right wheel 11 are realized, and at this time, the balance car is in an in-situ rotation state.

Claims

1. Balance car, including the automobile body, respectively rotate install in two wheels of automobile body both sides, its characterized in that: the balance car still includes:

2. The balance car of claim 1, wherein: drive chain group includes first drive sprocket, second drive sprocket and transmission and connects first drive sprocket with the drive chain of second drive sprocket, first ratchet drive subassembly set up in drive chain's first side, second ratchet drive subassembly set up in drive chain with the second side that first side is relative, drive chain with first ratchet drive subassembly perhaps second ratchet drive subassembly transmission is connected, the wheel with first drive sprocket perhaps the transmission of second drive sprocket is connected.

3. The balance car of claim 2, wherein: the first ratchet wheel transmission assembly comprises a first ratchet wheel rotatably mounted on the pedal device, a first forward pawl rotatably mounted on the pedal device and a first reverse pawl rotatably mounted on the pedal device, teeth for being meshed with the transmission chain are arranged on the periphery of the first ratchet wheel, first double-direction ratchet teeth are arranged on the first ratchet wheel, the first forward pawl is abutted against or separated from one end of the first double-direction ratchet teeth, and the first reverse pawl is abutted against or separated from the other end of the first double-direction ratchet teeth;

the second ratchet wheel transmission assembly comprises a second ratchet wheel rotatably mounted on the pedal device, a second forward pawl rotatably mounted on the pedal device and a second reverse pawl rotatably mounted on the pedal device, teeth used for being meshed with the transmission chain are arranged on the periphery of the second ratchet wheel, second bidirectional ratchet teeth are arranged on the second ratchet wheel, the second forward pawl is abutted to or separated from one end of the second bidirectional ratchet teeth, and the second reverse pawl is abutted to or separated from the other end of the second bidirectional ratchet teeth.

4. The balance car of claim 3, wherein: the reversing mechanism comprises a first mounting seat mounted on the vehicle body, a first rotating shaft rotatably mounted on the first mounting seat, a first touch group fixed on the first rotating shaft and used for contacting with the first reverse pawl to push the first reverse pawl to overturn or contacting with the second forward pawl to push the second forward pawl to overturn when the pedal device moves to the highest point, a second touch group rotatably mounted on the vehicle body and connected with the first touch group and used for contacting with the first forward pawl to push the first forward pawl to overturn or contacting with the second reverse pawl to push the second reverse pawl to overturn when the pedal device moves to the lowest point, and a first friction piece fixed on the first rotating shaft and in frictional contact with the wheels.

5. The balance car of claim 4, wherein: the first trigger group comprises a first reverse pawl trigger arm and a second forward pawl trigger arm, wherein the first reverse pawl trigger arm is used for contacting with the first reverse pawl and pushing the first reverse pawl to overturn so as to separate the first reverse pawl from the first bidirectional ratchet, and the second forward pawl trigger arm is connected with the first reverse pawl trigger arm and is used for contacting with the second forward pawl and pushing the second forward pawl to overturn so as to separate the second forward pawl from the second bidirectional ratchet;

the second trigger set comprises a first forward pawl trigger arm and a second reverse pawl trigger arm, wherein the first forward pawl trigger arm is used for contacting with the first forward pawl and pushing the first forward pawl to overturn so as to separate the first forward pawl from the first bidirectional ratchet, and the second reverse pawl trigger arm is connected with the first forward pawl trigger arm and is used for contacting with the second reverse pawl and pushing the second reverse pawl to overturn so as to separate the second reverse pawl from the second bidirectional ratchet.

6. The balance car of claim 5, wherein: the reversing mechanism further comprises a resetting mechanism, the resetting mechanism comprises a first elastic piece and a second elastic piece, one end of the first elastic piece is abutted with the first forward pawl, the other end of the first elastic piece is abutted with the first reverse pawl, the resetting mechanism is used for providing elastic force to enable the first forward pawl touch arm to push the first forward pawl to overturn and be engaged with the first double-direction ratchet when being separated from the first forward pawl, and the resetting mechanism is used for providing elastic force to enable the first reverse pawl touch arm to push the first reverse pawl to overturn and be engaged with the first double-direction ratchet when being separated from the first reverse pawl;

one end of the second elastic piece is abutted with the second forward pawl, the other end of the second elastic piece is abutted with the second reverse pawl, the second elastic piece is used for providing elastic force to enable the second forward pawl touch arm to be separated from the second forward pawl to push the second forward pawl to overturn and to be meshed with the second reverse ratchet, and the second elastic piece is used for providing elastic force to enable the second reverse pawl touch arm to be separated from the second reverse pawl to push the second reverse pawl to overturn and to be meshed with the second reverse ratchet.

7. The balance car of claim 2, wherein: the first ratchet transmission assembly comprises a third forward pawl which is rotatably mounted on the pedal device and is used for being abutted with the transmission chain to drive the transmission chain, and a third reverse pawl which is rotatably mounted on the pedal device and is used for being abutted with the transmission chain to drive the transmission chain; the second ratchet transmission assembly comprises a fourth forward pawl and a fourth reverse pawl, the fourth forward pawl is rotatably mounted on the pedal device and is used for being abutted to the transmission chain to drive the transmission chain, the fourth reverse pawl is rotatably mounted on the pedal device and is used for being abutted to the transmission chain to drive the transmission chain, the third forward pawl and the third reverse pawl are respectively positioned on the first side of the transmission chain, the fourth forward pawl and the fourth reverse pawl are respectively positioned on the second side of the transmission chain, the third forward pawl and the fourth reverse pawl are symmetrical about the transmission chain, and the third reverse pawl and the fourth forward pawl are symmetrical about the transmission chain.

8. The balance car of claim 7, wherein: the reversing mechanism comprises a second mounting seat mounted on the vehicle body, a second rotating shaft rotatably mounted on the second mounting seat, a third touch group movably mounted on the vehicle body, a fourth touch group movably mounted on the vehicle body and a second friction piece fixed on the second rotating shaft and in friction contact with the wheels, the second rotating shaft is connected with the third touch group and used for pushing the third touch group to axially swing, and the fourth touch group is connected with the third touch group;

the third actuation group comprises:

the first body is movably arranged on the vehicle body;

the first contact piece is arranged on the first body and used for pushing the third reverse pawl to turn over when the pedal device moves to the highest point so as to enable the third reverse pawl to be abutted to or separated from the transmission chain;

the second touch piece is arranged on the first body and used for pushing the third forward pawl to turn over when the pedal device moves to the highest point so that the third forward pawl is abutted to or separated from the transmission chain;

the third touch piece is arranged on the first body and used for pushing the fourth reverse pawl to turn over when the pedal device moves to the highest point so that the fourth reverse pawl is separated from or abutted to the transmission chain; and the number of the first and second groups,

the fourth touch piece is arranged on the first body and used for pushing the fourth forward pawl to turn over when the pedal device moves to the highest point so that the fourth forward pawl is separated from or abutted against the transmission chain;

the first touch part and the second touch part are respectively positioned at one side of the transmission chain, the first touch part is positioned at one end far away from the transmission chain, the third touch part and the fourth touch part are respectively positioned at the other side of the transmission chain, and the fourth touch part is positioned at one end far away from the transmission chain;

the fourth touch group comprises:

the second body is movably arranged on the vehicle body;

the fifth touch piece is arranged on the second body and used for pushing the third reverse pawl to turn over when the pedal device moves to the lowest point so as to enable the third reverse pawl to be separated from or abut against the transmission chain;

the sixth touch piece is arranged on the second body and used for pushing the third forward pawl to turn over when the pedal device moves to the lowest point so as to enable the third forward pawl to be separated from or abut against the transmission chain;

the seventh trigger is arranged on the second body and used for pushing the fourth reverse pawl to turn over when the pedal device moves to the lowest point so as to enable the fourth reverse pawl to be abutted against or separated from the transmission chain; and the number of the first and second groups,

the eighth triggering part is arranged on the second body and used for pushing the fourth positive pawl to turn over when the pedal device moves to the lowest point so as to enable the fourth positive pawl to be abutted to or separated from the transmission chain;

the fifth touch piece and the sixth touch piece are respectively positioned at one side of the transmission chain, the fifth touch piece is positioned at one end far away from the transmission chain, the seventh touch piece and the eighth touch piece are respectively positioned at the other side of the transmission chain, and the eighth touch piece is positioned at one end far away from the transmission chain.

9. The balance car of claim 8, wherein: the reversing mechanism further comprises a resetting mechanism, the resetting mechanism comprises a first resetting component for controlling the third forward pawl to reset, a second resetting component for controlling the third reverse pawl to reset, a third resetting component for controlling the fourth forward pawl to reset and a fourth resetting component for controlling the fourth reverse pawl to reset,

the first reset assembly, the second reset assembly, the third reset assembly and the fourth reset assembly respectively comprise a buffer part, a third elastic part, a clamping part which is matched with and clamped and fixed with the buffer part, and a fourth elastic part which is used for providing elastic thrust to ensure that the clamping part and the buffer part are kept in elastic clamping connection,

one end of the third elastic piece of the first reset assembly is connected with the buffer piece of the first reset assembly, the other end of the third elastic piece of the first reset assembly is elastically connected with the third positive pawl,

one end of the third elastic piece of the second resetting component is connected with the buffer piece of the second resetting component, the other end of the third elastic piece of the second resetting component is elastically connected with the third reverse pawl,

one end of the third elastic piece of the third resetting component is connected with the buffer piece of the third resetting component, the other end of the third elastic piece of the third resetting component is elastically connected with the fourth positive pawl,

one end of the third elastic piece of the fourth resetting component is connected with the buffer piece of the fourth resetting component, and the other end of the third elastic piece is elastically connected with the fourth reverse pawl.

10. The balance car of claim 1, wherein: the reversing mechanism further comprises a manual gear shifting mechanism used for manually switching the wheel direction.

11. The balance car of claim 2, wherein: the ratchet wheel transmission mechanism further comprises a transmission device, the transmission device comprises a first transmission wheel, a second transmission wheel and a first transmission belt in transmission connection with the first transmission wheel and the second transmission wheel, the first transmission wheel is fixedly connected with the first transmission chain wheel or the second transmission chain wheel, and the second transmission wheel is rotatably installed on a wheel shaft of the wheel.

12. The balance car of claim 11, wherein: the balance car still includes brake equipment, brake equipment includes:

the wheel friction block is fixedly connected with the wheel;

the driving friction blocks are axially movably arranged on the second driving wheel, and the second driving wheel and the driving friction blocks are respectively arranged at two sides of the wheel friction blocks;

the pushing friction block is arranged on a wheel shaft of the wheel and can axially move relative to the wheel, and comprises an inner friction piece clamped between the driving friction block and the wheel and an outer friction piece arranged at one end, far away from the inner friction piece, of the wheel and fixedly connected with the inner friction piece;

the brake friction block is axially movably arranged between the wheel and the outer friction piece and is used for being abutted against the outer friction piece in a braking state and driving the outer friction piece to axially move towards a direction far away from the inner friction piece so as to separate the drive friction block from the wheel friction block and enable the inner friction piece to be abutted against the wheel;

the brake cable is connected with the brake friction block;

the brake piece is connected with the brake cable and is used for controlling the axial movement of the brake friction block;

the limit stop block is sleeved outside the wheel shaft of the wheel; and the number of the first and second groups,

and two ends of the reset elastic piece are respectively abutted against the limit stop and the outer friction piece and used for providing elastic thrust so that the driving friction block and the wheel friction block keep elastic abutment in a non-braking state and the inner friction piece is separated from the wheel.